diff --git a/app/components/Nav/Main/RootRPCMethodsUI.js b/app/components/Nav/Main/RootRPCMethodsUI.js
index 086d3c3a61f7..5c4837095a7d 100644
--- a/app/components/Nav/Main/RootRPCMethodsUI.js
+++ b/app/components/Nav/Main/RootRPCMethodsUI.js
@@ -25,7 +25,7 @@ import {
   getIsSwapApproveOrSwapTransaction,
   isApprovalTransaction,
 } from '../../../util/transactions';
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import Logger from '../../../util/Logger';
 import TransactionTypes from '../../../core/TransactionTypes';
 import { swapsUtils } from '@metamask/swaps-controller';
diff --git a/app/components/UI/ConfirmAddAsset/ConfirmAddAsset.test.tsx b/app/components/UI/ConfirmAddAsset/ConfirmAddAsset.test.tsx
index ed1a2f5fdc3a..c97e01287dde 100644
--- a/app/components/UI/ConfirmAddAsset/ConfirmAddAsset.test.tsx
+++ b/app/components/UI/ConfirmAddAsset/ConfirmAddAsset.test.tsx
@@ -7,7 +7,6 @@ import renderWithProvider, {
 import useBalance from '../Ramp/hooks/useBalance';
 import { toTokenMinimalUnit } from '../../../util/number';
 import { fireEvent } from '@testing-library/react-native';
-import { BN } from 'ethereumjs-util';
 import { RootState } from '../../../reducers';
 import { mockNetworkState } from '../../../util/test/network';
 import { CHAIN_IDS } from '@metamask/transaction-controller';
@@ -48,7 +47,8 @@ jest.mock('../../../util/navigation/navUtils', () => ({
 
 const mockUseBalanceInitialValue: Partial<ReturnType<typeof useBalance>> = {
   balanceFiat: '$27.02',
-  balanceBN: toTokenMinimalUnit('5.36385', 18) as BN,
+  balance: '5.36385',
+  balanceMinimalUnit: toTokenMinimalUnit('5.36385', 18).toString(),
 };
 
 const mockUseBalanceValues: Partial<ReturnType<typeof useBalance>> = {
diff --git a/app/components/UI/Ramp/Views/BuildQuote/BuildQuote.test.tsx b/app/components/UI/Ramp/Views/BuildQuote/BuildQuote.test.tsx
index 9fb61eadebcf..62d9ba3c346a 100644
--- a/app/components/UI/Ramp/Views/BuildQuote/BuildQuote.test.tsx
+++ b/app/components/UI/Ramp/Views/BuildQuote/BuildQuote.test.tsx
@@ -1,7 +1,7 @@
 import React from 'react';
 import { Limits, Payment } from '@consensys/on-ramp-sdk';
 import { act, fireEvent, screen } from '@testing-library/react-native';
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { renderScreen } from '../../../../../util/test/renderWithProvider';
 import BuildQuote from './BuildQuote';
 import useRegions from '../../hooks/useRegions';
@@ -155,7 +155,7 @@ jest.mock('../../hooks/usePaymentMethods', () =>
 );
 
 const MAX_LIMIT = 4;
-const VALID_AMOUNT = 3;
+const VALID_AMOUNT = '3';
 const MIN_LIMIT = 2;
 const mockUseLimitsInitialValues: Partial<ReturnType<typeof useLimits>> = {
   limits: {
@@ -191,7 +191,8 @@ jest.mock('../../../../hooks/useAddressBalance/useAddressBalance', () =>
 
 const mockUseBalanceInitialValue: Partial<ReturnType<typeof useBalance>> = {
   balanceFiat: '$27.02',
-  balanceBN: toTokenMinimalUnit('5.36385', 18) as BN,
+  balance: '5.36385',
+  balanceMinimalUnit: '5363850000000000000',
 };
 
 let mockUseBalanceValues: Partial<ReturnType<typeof useBalance>> = {
@@ -239,10 +240,10 @@ let mockUseParamsValues: {
 const mockUseGasPriceEstimationInitialValue: ReturnType<
   typeof useGasPriceEstimation
 > = {
-  estimatedGasFee: toTokenMinimalUnit(
+  estimatedGasFee: new BN(toTokenMinimalUnit(
     '0.01',
     mockUseRampSDKInitialValues.selectedAsset?.decimals || 18,
-  ) as BN,
+  )),
 };
 
 let mockUseGasPriceEstimationValue: ReturnType<typeof useGasPriceEstimation> =
@@ -666,10 +667,12 @@ describe('BuildQuote View', () => {
         maxAmount: 10,
       } as Limits;
 
-      mockUseBalanceValues.balanceBN = toTokenMinimalUnit(
-        '5',
-        mockUseRampSDKValues.selectedAsset?.decimals || 18,
-      ) as BN;
+      mockUseBalanceValues = {
+        ...mockUseBalanceInitialValue,
+        balance: '5',
+        balanceMinimalUnit: (5 * Math.pow(10, mockUseRampSDKValues.selectedAsset?.decimals || 18)).toString(10),
+      };
+
       render(BuildQuote);
       const initialAmount = '0';
       const overBalanceAmout = '6';
@@ -682,14 +685,15 @@ describe('BuildQuote View', () => {
     });
 
     it('updates the amount input with quick amount buttons', async () => {
-      render(BuildQuote);
       const initialAmount = '0';
+      mockUseBalanceValues = {
+        ...mockUseBalanceInitialValue,
+        balance: '1',
+        balanceMinimalUnit: (1 * Math.pow(10, mockUseRampSDKValues.selectedAsset?.decimals || 18)).toString(10),
+      };
 
-      mockUseBalanceValues.balanceBN = toTokenMinimalUnit(
-        '1',
-        mockUseRampSDKValues.selectedAsset?.decimals || 18,
-      ) as BN;
       const symbol = mockUseRampSDKValues.selectedAsset?.symbol;
+      render(BuildQuote);
       fireEvent.press(getByRoleButton(`${initialAmount} ${symbol}`));
       fireEvent.press(getByRoleButton('25%'));
       expect(getByRoleButton(`0.25 ${symbol}`)).toBeTruthy();
@@ -715,17 +719,14 @@ describe('BuildQuote View', () => {
 
       mockUseBalanceValues = {
         balance: '1',
+        balanceMinimalUnit: (1 * Math.pow(10, mockUseRampSDKValues.selectedAsset?.decimals || 18)).toString(10),
         balanceFiat: '$1.00',
-        balanceBN: toTokenMinimalUnit(
-          '1',
-          mockUseRampSDKValues.selectedAsset?.decimals || 18,
-        ) as BN,
       };
       mockUseGasPriceEstimationValue = {
-        estimatedGasFee: toTokenMinimalUnit(
+        estimatedGasFee: new BN(toTokenMinimalUnit(
           '0.27',
           mockUseRampSDKValues.selectedAsset?.decimals || 18,
-        ) as BN,
+        )),
       };
       const symbol = mockUseRampSDKValues.selectedAsset?.symbol;
       fireEvent.press(getByRoleButton(`${initialAmount} ${symbol}`));
@@ -733,9 +734,8 @@ describe('BuildQuote View', () => {
       expect(getByRoleButton(`0.73 ${symbol}`)).toBeTruthy();
     });
 
-    it('updates the amount input up to the percentage considering gas', async () => {
-      render(BuildQuote);
       const initialAmount = '0';
+    it('updates the amount input up to the percentage considering gas', async () => {
       mockUseRampSDKValues = {
         ...mockUseRampSDKInitialValues,
         isBuy: false,
@@ -745,21 +745,20 @@ describe('BuildQuote View', () => {
           address: NATIVE_ADDRESS,
         },
       };
-
       mockUseBalanceValues = {
         balance: '1',
+        balanceMinimalUnit: (1 * Math.pow(10, mockUseRampSDKValues.selectedAsset?.decimals || 18)).toString(10),
         balanceFiat: '$1.00',
-        balanceBN: toTokenMinimalUnit(
-          '1',
-          mockUseRampSDKValues.selectedAsset?.decimals || 18,
-        ) as BN,
       };
       mockUseGasPriceEstimationValue = {
-        estimatedGasFee: toTokenMinimalUnit(
+        estimatedGasFee: new BN(toTokenMinimalUnit(
           '0.27',
           mockUseRampSDKValues.selectedAsset?.decimals || 18,
-        ) as BN,
+        )),
       };
+
+      render(BuildQuote);
+
       const symbol = mockUseRampSDKValues.selectedAsset?.symbol;
       fireEvent.press(getByRoleButton(`${initialAmount} ${symbol}`));
       fireEvent.press(getByRoleButton('75%'));
@@ -799,7 +798,7 @@ describe('BuildQuote View', () => {
     });
 
     expect(mockTrackEvent).toHaveBeenCalledWith('ONRAMP_QUOTES_REQUESTED', {
-      amount: VALID_AMOUNT,
+      amount: parseInt(VALID_AMOUNT),
       currency_source: mockUseFiatCurrenciesValues?.currentFiatCurrency?.symbol,
       currency_destination: mockUseRampSDKValues?.selectedAsset?.symbol,
       payment_method_id: mockUsePaymentMethodsValues.currentPaymentMethod?.id,
@@ -834,7 +833,7 @@ describe('BuildQuote View', () => {
     });
 
     expect(mockTrackEvent).toHaveBeenCalledWith('OFFRAMP_QUOTES_REQUESTED', {
-      amount: VALID_AMOUNT,
+      amount: parseInt(VALID_AMOUNT),
       currency_source: mockUseRampSDKValues?.selectedAsset?.symbol,
       currency_destination:
         mockUseFiatCurrenciesValues?.currentFiatCurrency?.symbol,
diff --git a/app/components/UI/Ramp/Views/BuildQuote/BuildQuote.tsx b/app/components/UI/Ramp/Views/BuildQuote/BuildQuote.tsx
index 04727253c4be..ceaa66703a5b 100644
--- a/app/components/UI/Ramp/Views/BuildQuote/BuildQuote.tsx
+++ b/app/components/UI/Ramp/Views/BuildQuote/BuildQuote.tsx
@@ -12,7 +12,7 @@ import Animated, {
   withTiming,
 } from 'react-native-reanimated';
 import { useNavigation } from '@react-navigation/native';
-import { BN } from 'ethereumjs-util';
+import { BigNumber } from 'bignumber.js';
 
 import { useRampSDK } from '../../sdk';
 import usePaymentMethods from '../../hooks/usePaymentMethods';
@@ -65,7 +65,6 @@ import { useStyles } from '../../../../../component-library/hooks';
 
 import styleSheet from './BuildQuote.styles';
 import {
-  toTokenMinimalUnit,
   fromTokenMinimalUnitString,
 } from '../../../../../util/number';
 import useGasPriceEstimation from '../../hooks/useGasPriceEstimation';
@@ -103,8 +102,6 @@ const BuildQuote = () => {
   const trackEvent = useAnalytics();
   const [amountFocused, setAmountFocused] = useState(false);
   const [amount, setAmount] = useState('0');
-  const [amountNumber, setAmountNumber] = useState(0);
-  const [amountBNMinimalUnit, setAmountBNMinimalUnit] = useState<BN>();
   const [error, setError] = useState<string | null>(null);
   const keyboardHeight = useRef(1000);
   const keypadOffset = useSharedValue(1000);
@@ -191,8 +188,6 @@ const BuildQuote = () => {
 
   useIntentAmount(
     setAmount,
-    setAmountNumber,
-    setAmountBNMinimalUnit,
     currentFiatCurrency,
   );
 
@@ -221,7 +216,7 @@ const BuildQuote = () => {
     selectedAddress,
   );
 
-  const { balanceFiat, balanceBN } = useBalance(
+  const { balance, balanceFiat, balanceMinimalUnit } = useBalance(
     selectedAsset
       ? {
           address: selectedAsset.address,
@@ -230,39 +225,43 @@ const BuildQuote = () => {
       : undefined,
   );
 
-  const maxSellAmount =
-    balanceBN && gasPriceEstimation
-      ? balanceBN?.sub(gasPriceEstimation.estimatedGasFee)
-      : null;
-
   const amountIsBelowMinimum = useMemo(
-    () => isAmountBelowMinimum(amountNumber),
-    [amountNumber, isAmountBelowMinimum],
+    () => isAmountBelowMinimum(amount),
+    [amount, isAmountBelowMinimum],
   );
 
   const amountIsAboveMaximum = useMemo(
-    () => isAmountAboveMaximum(amountNumber),
-    [amountNumber, isAmountAboveMaximum],
+    () => isAmountAboveMaximum(amount),
+    [amount, isAmountAboveMaximum],
   );
 
   const amountIsValid = useMemo(
-    () => isAmountValid(amountNumber),
-    [amountNumber, isAmountValid],
+    () => isAmountValid(amount),
+    [amount, isAmountValid],
   );
 
   const amountIsOverGas = useMemo(() => {
-    if (isBuy || !maxSellAmount) {
+    if (isBuy || balanceMinimalUnit === null) {
       return false;
     }
-    return Boolean(amountBNMinimalUnit?.gt(maxSellAmount));
-  }, [amountBNMinimalUnit, isBuy, maxSellAmount]);
+    const balanceBigNum = new BigNumber(balanceMinimalUnit, 10);
+    const maxSellAmount = gasPriceEstimation !== null
+        ? balanceBigNum.minus(gasPriceEstimation.estimatedGasFee.toString(10))
+        : null;
 
-  const hasInsufficientBalance = useMemo(() => {
-    if (!balanceBN || !amountBNMinimalUnit) {
+    if (!maxSellAmount) {
       return false;
     }
-    return balanceBN.lt(amountBNMinimalUnit);
-  }, [balanceBN, amountBNMinimalUnit]);
+    return Boolean(new BigNumber(amount).gt(maxSellAmount));
+  }, [amount, isBuy, balanceMinimalUnit, gasPriceEstimation]);
+
+  const hasInsufficientBalance = useMemo(() => {
+    if (balance === null) {
+      return undefined;
+    }
+    const balanceBigNum = new BigNumber(balance, 10);
+    return balanceBigNum.lt(amount);
+  }, [balance, amount]);
 
   const isFetching =
     isFetchingCryptoCurrencies ||
@@ -336,57 +335,46 @@ const BuildQuote = () => {
   const onAmountInputPress = useCallback(() => setAmountFocused(true), []);
 
   const handleKeypadChange = useCallback(
-    ({ value, valueAsNumber }) => {
+    ({ value }) => {
       setAmount(`${value}`);
-      setAmountNumber(valueAsNumber);
-      if (isSell) {
-        setAmountBNMinimalUnit(
-          toTokenMinimalUnit(`${value}`, selectedAsset?.decimals ?? 0) as BN,
-        );
-      }
     },
-    [isSell, selectedAsset?.decimals],
+    [],
   );
 
   const handleQuickAmountPress = useCallback(
     ({ value }: QuickAmount) => {
       if (isBuy) {
-        setAmount(`${value}`);
-        setAmountNumber(value);
-      } else {
-        const percentage = value * 100;
-        const amountPercentage = balanceBN
-          ?.mul(new BN(percentage))
-          .div(new BN(100));
+        setAmount(value.toString());
+        return;
+      }
+      if (balanceMinimalUnit === null) {
+        return;
+      }
+      const balanceBigNum = new BigNumber(balanceMinimalUnit, 10);
 
-        if (!amountPercentage) {
-          return;
-        }
+      const targetAmount = balanceBigNum.multipliedBy(value);
 
-        let amountToSet = amountPercentage;
+      const maxSellAmount = gasPriceEstimation !== null
+          ? balanceBigNum?.minus(gasPriceEstimation.estimatedGasFee.toString(10))
+          : null;
 
-        if (
-          selectedAsset?.address === NATIVE_ADDRESS &&
-          maxSellAmount?.lt(amountPercentage)
-        ) {
-          amountToSet = maxSellAmount;
-        }
+      const amountToSet = (
+        selectedAsset?.address === NATIVE_ADDRESS && maxSellAmount?.lt(targetAmount)
+      ) ? maxSellAmount : targetAmount;
 
-        const newAmountString = fromTokenMinimalUnitString(
-          amountToSet.toString(10),
-          selectedAsset?.decimals ?? 18,
-        );
-        setAmountBNMinimalUnit(amountToSet);
-        setAmount(newAmountString);
-        setAmountNumber(Number(newAmountString));
-      }
+      // TODO: Too many levels of parsing strings and numbers back and forth here..
+      const newAmountString = fromTokenMinimalUnitString(
+        amountToSet.toString(10),
+        selectedAsset?.decimals ?? 18,
+      );
+      setAmount(newAmountString);
     },
     [
-      balanceBN,
       isBuy,
-      maxSellAmount,
       selectedAsset?.address,
       selectedAsset?.decimals,
+      balanceMinimalUnit,
+      gasPriceEstimation,
     ],
   );
 
@@ -408,7 +396,6 @@ const BuildQuote = () => {
     async (region: Region) => {
       hideRegionModal();
       setAmount('0');
-      setAmountNumber(0);
       if (selectedFiatCurrencyId === defaultFiatCurrency?.id) {
         /*
          * Selected fiat currency is default, we will fetch
@@ -463,7 +450,6 @@ const BuildQuote = () => {
     (fiatCurrency) => {
       setSelectedFiatCurrencyId(fiatCurrency?.id);
       setAmount('0');
-      setAmountNumber(0);
       hideFiatSelectorModal();
     },
     [hideFiatSelectorModal, setSelectedFiatCurrencyId],
@@ -490,7 +476,7 @@ const BuildQuote = () => {
     if (selectedAsset && currentFiatCurrency) {
       navigation.navigate(
         ...createQuotesNavDetails({
-          amount: isBuy ? amountNumber : amount,
+          amount,
           asset: selectedAsset,
           fiatCurrency: currentFiatCurrency,
         }),
@@ -498,7 +484,7 @@ const BuildQuote = () => {
 
       const analyticsPayload = {
         payment_method_id: selectedPaymentMethodId as string,
-        amount: amountNumber,
+        amount: parseFloat(amount),
         location: screenLocation,
       };
 
@@ -521,7 +507,6 @@ const BuildQuote = () => {
   }, [
     screenLocation,
     amount,
-    amountNumber,
     currentFiatCurrency,
     isBuy,
     navigation,
@@ -687,21 +672,20 @@ const BuildQuote = () => {
   }
 
   const displayAmount = isBuy
-    ? formatAmount(amountNumber)
+    ? formatAmount(parseFloat(amount))
     : `${amount} ${selectedAsset?.symbol}`;
 
-  let quickAmounts: QuickAmount[] = [];
-
-  if (isBuy) {
-    quickAmounts =
-      limits?.quickAmounts?.map((quickAmount) => ({
-        value: quickAmount,
-        label: currentFiatCurrency?.denomSymbol + quickAmount.toString(),
-      })) ?? [];
-  } else if (balanceBN && !balanceBN.isZero() && maxSellAmount?.gt(new BN(0))) {
-    quickAmounts = [
+  const getQuickAmounts = (): QuickAmount[] => {
+    console.warn('GQC', {isBuy, isSell, limits, balance, balanceMinimalUnit, gasPriceEstimation });
+    if (isBuy) {
+      return limits?.quickAmounts?.map((quickAmount) => ({
+          value: quickAmount,
+          label: currentFiatCurrency?.denomSymbol + quickAmount.toString(),
+        })) ?? [];
+    }
+    const sellLimits = [
       { value: 0.25, label: '25%' },
-      { value: 0.5, label: '50%' },
+      { value: 0.50, label: '50%' },
       { value: 0.75, label: '75%' },
       {
         value: 1,
@@ -709,7 +693,18 @@ const BuildQuote = () => {
         isNative: selectedAsset?.address === NATIVE_ADDRESS,
       },
     ];
-  }
+    if (balanceMinimalUnit === null || gasPriceEstimation === null) {
+      return sellLimits;
+    }
+    const balanceBigNum = new BigNumber(balanceMinimalUnit, 10);
+    const maxSellAmount = balanceBigNum?.minus(gasPriceEstimation.estimatedGasFee.toString(10));
+    if (!balanceBigNum.isZero() && maxSellAmount.gt(0)) {
+      return sellLimits;
+    }
+    return [];
+  };
+
+  const quickAmounts = getQuickAmounts();
 
   return (
     <ScreenLayout>
@@ -783,14 +778,13 @@ const BuildQuote = () => {
               }
               amount={displayAmount}
               highlightedError={
-                amountNumber > 0 && (!amountIsValid || amountIsOverGas)
+                parseFloat(amount) > 0 && (!amountIsValid || amountIsOverGas)
               }
               currencyCode={isBuy ? currentFiatCurrency?.symbol : undefined}
               onPress={onAmountInputPress}
               onCurrencyPress={isBuy ? handleFiatSelectorPress : undefined}
             />
-            {amountNumber > 0 &&
-              amountIsValid &&
+            {amountIsValid &&
               !hasInsufficientBalance &&
               amountIsOverGas && (
                 <Row>
@@ -864,8 +858,8 @@ const BuildQuote = () => {
             {currentPaymentMethod?.customAction ? (
               <CustomActionButton
                 customAction={currentPaymentMethod.customAction}
-                amount={amountNumber}
-                disabled={!amountIsValid || amountNumber <= 0}
+                amount={amount}
+                disabled={!amountIsValid}
                 fiatSymbol={currentFiatCurrency?.symbol}
               />
             ) : (
@@ -874,7 +868,7 @@ const BuildQuote = () => {
                 onPress={handleGetQuotePress}
                 accessibilityRole="button"
                 accessible
-                disabled={amountNumber <= 0}
+                disabled={parseInt(amount, 10) <= 0}
               >
                 {strings('fiat_on_ramp_aggregator.get_quotes')}
               </StyledButton>
@@ -901,7 +895,7 @@ const BuildQuote = () => {
               : `${selectedAsset?.symbol}-crypto`
           }
           decimals={
-            isBuy ? currentFiatCurrency?.decimals : selectedAsset?.decimals
+            (isBuy ? currentFiatCurrency?.decimals : selectedAsset?.decimals) ?? 0
           }
         />
         <ScreenLayout.Content>
diff --git a/app/components/UI/Ramp/Views/Quotes/Quotes.test.tsx b/app/components/UI/Ramp/Views/Quotes/Quotes.test.tsx
index 22c84f9f7ad7..3a9dbffdbb4f 100644
--- a/app/components/UI/Ramp/Views/Quotes/Quotes.test.tsx
+++ b/app/components/UI/Ramp/Views/Quotes/Quotes.test.tsx
@@ -100,7 +100,7 @@ jest.mock('../../hooks/useAnalytics', () => () => mockTrackEvent);
 jest.mock('../../hooks/useInAppBrowser', () => () => mockRenderInAppBrowser);
 
 const mockUseParamsInitialValues: DeepPartial<QuotesParams> = {
-  amount: 50,
+  amount: '50',
   asset: {
     symbol: 'ETH',
   },
@@ -257,7 +257,7 @@ describe('Quotes', () => {
       [
         "ONRAMP_QUOTES_EXPANDED",
         {
-          "amount": 50,
+          "amount": "50",
           "chain_id_destination": "1",
           "currency_destination": "ETH",
           "currency_source": "USD",
@@ -339,7 +339,7 @@ describe('Quotes', () => {
       [
         "ONRAMP_PROVIDER_SELECTED",
         {
-          "amount": 50,
+          "amount": "50",
           "chain_id_destination": "1",
           "crypto_out": 0.0162,
           "currency_destination": "ETH",
@@ -369,7 +369,7 @@ describe('Quotes', () => {
       [
         "OFFRAMP_PROVIDER_SELECTED",
         {
-          "amount": 50,
+          "amount": "50",
           "chain_id_source": "1",
           "currency_destination": "USD",
           "currency_source": "ETH",
@@ -404,7 +404,7 @@ describe('Quotes', () => {
       [
         "ONRAMP_PROVIDER_SELECTED",
         {
-          "amount": 50,
+          "amount": "50",
           "chain_id_destination": "1",
           "crypto_out": 0.0162,
           "currency_destination": "ETH",
@@ -434,7 +434,7 @@ describe('Quotes', () => {
       [
         "OFFRAMP_PROVIDER_SELECTED",
         {
-          "amount": 50,
+          "amount": "50",
           "chain_id_source": "1",
           "currency_destination": "USD",
           "currency_source": "ETH",
@@ -535,7 +535,7 @@ describe('Quotes', () => {
         [
           "ONRAMP_QUOTES_RECEIVED",
           {
-            "amount": 50,
+            "amount": "50",
             "average_crypto_out": 0.016671,
             "average_gas_fee": 1.32,
             "average_processing_fee": 1.455,
@@ -564,7 +564,7 @@ describe('Quotes', () => {
         [
           "ONRAMP_QUOTE_ERROR",
           {
-            "amount": 50,
+            "amount": "50",
             "chain_id_destination": "1",
             "currency_destination": "ETH",
             "currency_source": "USD",
@@ -594,7 +594,7 @@ describe('Quotes', () => {
         [
           "OFFRAMP_QUOTES_RECEIVED",
           {
-            "amount": 50,
+            "amount": "50",
             "average_fiat_out": 0.016671,
             "average_gas_fee": 1.32,
             "average_processing_fee": 1.455,
@@ -623,7 +623,7 @@ describe('Quotes', () => {
         [
           "OFFRAMP_QUOTE_ERROR",
           {
-            "amount": 50,
+            "amount": "50",
             "chain_id_source": "1",
             "currency_destination": "USD",
             "currency_source": "ETH",
diff --git a/app/components/UI/Ramp/Views/Quotes/Quotes.tsx b/app/components/UI/Ramp/Views/Quotes/Quotes.tsx
index 5738cdbc549d..b4cce1f7b9c3 100644
--- a/app/components/UI/Ramp/Views/Quotes/Quotes.tsx
+++ b/app/components/UI/Ramp/Views/Quotes/Quotes.tsx
@@ -74,7 +74,7 @@ import { getOrdersProviders } from './../../../../../reducers/fiatOrders';
 
 const HIGHLIGHTED_QUOTES_COUNT = 2;
 export interface QuotesParams {
-  amount: number | string;
+  amount: string;
   asset: CryptoCurrency;
   fiatCurrency: FiatCurrency;
 }
diff --git a/app/components/UI/Ramp/Views/SendTransaction/SendTransaction.tsx b/app/components/UI/Ramp/Views/SendTransaction/SendTransaction.tsx
index ac4927aa503e..8fdee41cb16f 100644
--- a/app/components/UI/Ramp/Views/SendTransaction/SendTransaction.tsx
+++ b/app/components/UI/Ramp/Views/SendTransaction/SendTransaction.tsx
@@ -2,7 +2,7 @@ import React, { useCallback, useEffect, useMemo, useState } from 'react';
 import { ImageSourcePropType, View } from 'react-native';
 import { useDispatch, useSelector } from 'react-redux';
 import { useNavigation } from '@react-navigation/native';
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { SellOrder } from '@consensys/on-ramp-sdk/dist/API';
 import {
   TransactionParams,
diff --git a/app/components/UI/Ramp/hooks/useBalance.ts b/app/components/UI/Ramp/hooks/useBalance.ts
index 4c2e52afecb6..08ac4f888ee3 100644
--- a/app/components/UI/Ramp/hooks/useBalance.ts
+++ b/app/components/UI/Ramp/hooks/useBalance.ts
@@ -1,5 +1,4 @@
 import { useSelector } from 'react-redux';
-import { hexToBN } from '@metamask/controller-utils';
 import { NATIVE_ADDRESS } from '../../../../constants/on-ramp';
 import { selectAccountsByChainId } from '../../../../selectors/accountTrackerController';
 import {
@@ -13,6 +12,7 @@ import { selectChainId } from '../../../../selectors/networkController';
 import { safeToChecksumAddress } from '../../../../util/address';
 import {
   balanceToFiat,
+  hexToBN,
   renderFromTokenMinimalUnit,
   renderFromWei,
   toHexadecimal,
@@ -22,7 +22,7 @@ import {
 const defaultReturn = {
   balance: null,
   balanceFiat: null,
-  balanceBN: null,
+  balanceMinimalUnit: null,
 };
 
 interface Asset {
@@ -30,7 +30,15 @@ interface Asset {
   decimals: number;
 }
 
-export default function useBalance(asset?: Asset) {
+export default function useBalance(asset?: Asset): {
+  balance: string,
+  balanceFiat: string,
+  balanceMinimalUnit: string,
+} | {
+  balance: null,
+  balanceFiat: null,
+  balanceMinimalUnit: null,
+}{
   const accountsByChainId = useSelector(selectAccountsByChainId);
   const chainId = useSelector(selectChainId);
   const selectedAddress = useSelector(
@@ -51,38 +59,31 @@ export default function useBalance(asset?: Asset) {
     return defaultReturn;
   }
 
-  let balance, balanceFiat, balanceBN;
   if (assetAddress === NATIVE_ADDRESS) {
-    balance = renderFromWei(
-      //@ts-expect-error - TODO: Ramps team
-      accountsByChainId[toHexadecimal(chainId)][selectedAddress]?.balance,
-    );
+    //@ts-expect-error - TODO: Ramps team
+    const balanceMinimalUnit = accountsByChainId[toHexadecimal(chainId)][selectedAddress]?.balance;
+    const balance = renderFromWei(balanceMinimalUnit);
 
-    balanceBN = hexToBN(
-      //@ts-expect-error - TODO: Ramps team
-      accountsByChainId[toHexadecimal(chainId)][selectedAddress]?.balance,
-    );
-    balanceFiat = weiToFiat(balanceBN, conversionRate, currentCurrency);
-  } else {
-    const exchangeRate = tokenExchangeRates?.[assetAddress]?.price;
-    balance =
-      assetAddress && assetAddress in balances
-        ? renderFromTokenMinimalUnit(
-            balances[assetAddress],
-            asset.decimals ?? 18,
-          )
-        : 0;
-    balanceFiat = balanceToFiat(
-      balance,
-      conversionRate,
-      exchangeRate,
-      currentCurrency,
-    );
-    balanceBN =
-      assetAddress && assetAddress in balances
-        ? hexToBN(balances[assetAddress])
-        : null;
+    const balanceBN = hexToBN(balance);
+    const balanceFiat = weiToFiat(balanceBN, conversionRate, currentCurrency);
+    return { balance, balanceFiat, balanceMinimalUnit };
   }
 
-  return { balance, balanceFiat, balanceBN };
+  const exchangeRate = tokenExchangeRates?.[assetAddress]?.price;
+  const balanceMinimalUnit = assetAddress && assetAddress in balances
+    ? balances[assetAddress]
+    : '0';
+  const balance = balanceMinimalUnit
+    ? renderFromTokenMinimalUnit(
+        balanceMinimalUnit,
+        asset.decimals ?? 18,
+      )
+    : '0';
+  const balanceFiat = balanceToFiat(
+    balance,
+    conversionRate,
+    exchangeRate,
+    currentCurrency,
+  );
+  return { balance, balanceFiat, balanceMinimalUnit };
 }
diff --git a/app/components/UI/Ramp/hooks/useGasPriceEstimation.ts b/app/components/UI/Ramp/hooks/useGasPriceEstimation.ts
index 6c9565b94f6f..18182dea4722 100644
--- a/app/components/UI/Ramp/hooks/useGasPriceEstimation.ts
+++ b/app/components/UI/Ramp/hooks/useGasPriceEstimation.ts
@@ -5,7 +5,7 @@ import {
   type GasFeeController as GasFeeControllerType,
 } from '@metamask/gas-fee-controller';
 
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import Engine from '../../../../core/Engine';
 import { decGWEIToHexWEI } from '../../../../util/conversions';
 import { selectGasFeeControllerState } from '../../../../selectors/gasFeeController';
diff --git a/app/components/UI/Ramp/hooks/useIntentAmount.test.ts b/app/components/UI/Ramp/hooks/useIntentAmount.test.ts
index b8a639b71311..d6046b014fe5 100644
--- a/app/components/UI/Ramp/hooks/useIntentAmount.test.ts
+++ b/app/components/UI/Ramp/hooks/useIntentAmount.test.ts
@@ -46,9 +46,6 @@ const mockFiatCurrenciesData = [
 ] as FiatCurrency[];
 
 const mockSetAmount = jest.fn();
-const mockSetAmountNumber = jest.fn();
-const mockSetAmountBNMinimalUnit = jest.fn();
-
 const mockSetIntent = jest.fn();
 
 const mockUseRampSDKInitialValues: Partial<RampSDK> = {
@@ -80,14 +77,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).toHaveBeenCalledWith('100');
-    expect(mockSetAmountNumber).toHaveBeenCalledWith(100);
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).toHaveBeenCalledWith(expect.any(Function));
   });
 
@@ -102,14 +95,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).toHaveBeenCalledWith('100.23');
-    expect(mockSetAmountNumber).toHaveBeenCalledWith(100.23);
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).toHaveBeenCalledWith(expect.any(Function));
   });
 
@@ -124,14 +113,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).toHaveBeenCalledWith('100');
-    expect(mockSetAmountNumber).toHaveBeenCalledWith(100);
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).toHaveBeenCalledWith(expect.any(Function));
   });
 
@@ -145,26 +130,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).toHaveBeenCalledWith('100.12345678');
-    expect(mockSetAmountNumber.mock.calls).toMatchInlineSnapshot(`
-      [
-        [
-          100.12345678,
-        ],
-      ]
-    `);
-    expect(mockSetAmountBNMinimalUnit.mock.calls).toMatchInlineSnapshot(`
-      [
-        [
-          "254c8454e",
-        ],
-      ]
-    `);
     expect(mockSetIntent).toHaveBeenCalledWith(expect.any(Function));
   });
 
@@ -182,26 +151,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).toHaveBeenCalledWith('100.1234');
-    expect(mockSetAmountNumber.mock.calls).toMatchInlineSnapshot(`
-      [
-        [
-          100.1234,
-        ],
-      ]
-    `);
-    expect(mockSetAmountBNMinimalUnit.mock.calls).toMatchInlineSnapshot(`
-      [
-        [
-          "f4712",
-        ],
-      ]
-    `);
     expect(mockSetIntent).toHaveBeenCalledWith(expect.any(Function));
   });
 
@@ -219,26 +172,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).toHaveBeenCalledWith('100');
-    expect(mockSetAmountNumber.mock.calls).toMatchInlineSnapshot(`
-      [
-        [
-          100,
-        ],
-      ]
-    `);
-    expect(mockSetAmountBNMinimalUnit.mock.calls).toMatchInlineSnapshot(`
-      [
-        [
-          "64",
-        ],
-      ]
-    `);
     expect(mockSetIntent).toHaveBeenCalledWith(expect.any(Function));
   });
 
@@ -257,26 +194,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).toHaveBeenCalledWith('100.123');
-    expect(mockSetAmountNumber.mock.calls).toMatchInlineSnapshot(`
-      [
-        [
-          100.123,
-        ],
-      ]
-    `);
-    expect(mockSetAmountBNMinimalUnit.mock.calls).toMatchInlineSnapshot(`
-      [
-        [
-          "1871b",
-        ],
-      ]
-    `);
     expect(mockSetIntent).toHaveBeenCalledWith(expect.any(Function));
   });
 
@@ -288,14 +209,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).not.toHaveBeenCalled();
-    expect(mockSetAmountNumber).not.toHaveBeenCalled();
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).toHaveBeenCalledWith(expect.any(Function));
   });
 
@@ -309,14 +226,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).not.toHaveBeenCalled();
-    expect(mockSetAmountNumber).not.toHaveBeenCalled();
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).toHaveBeenCalledWith(expect.any(Function));
   });
 
@@ -326,14 +239,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).not.toHaveBeenCalled();
-    expect(mockSetAmountNumber).not.toHaveBeenCalled();
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).not.toHaveBeenCalled();
   });
 
@@ -345,14 +254,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).not.toHaveBeenCalled();
-    expect(mockSetAmountNumber).not.toHaveBeenCalled();
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).not.toHaveBeenCalled();
   });
 
@@ -361,14 +266,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).not.toHaveBeenCalled();
-    expect(mockSetAmountNumber).not.toHaveBeenCalled();
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).not.toHaveBeenCalled();
   });
 
@@ -379,14 +280,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).not.toHaveBeenCalled();
-    expect(mockSetAmountNumber).not.toHaveBeenCalled();
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).not.toHaveBeenCalled();
   });
 
@@ -396,14 +293,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).not.toHaveBeenCalled();
-    expect(mockSetAmountNumber).not.toHaveBeenCalled();
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).not.toHaveBeenCalled();
   });
 
@@ -415,14 +308,10 @@ describe('useIntentAmount', () => {
     renderHook(() =>
       useIntentAmount(
         mockSetAmount,
-        mockSetAmountNumber,
-        mockSetAmountBNMinimalUnit,
         currentFiatCurrency,
       ),
     );
     expect(mockSetAmount).not.toHaveBeenCalled();
-    expect(mockSetAmountNumber).not.toHaveBeenCalled();
-    expect(mockSetAmountBNMinimalUnit).not.toHaveBeenCalled();
     expect(mockSetIntent).not.toHaveBeenCalled();
   });
 });
diff --git a/app/components/UI/Ramp/hooks/useIntentAmount.ts b/app/components/UI/Ramp/hooks/useIntentAmount.ts
index 7b024731c3db..512d5fbcc69b 100644
--- a/app/components/UI/Ramp/hooks/useIntentAmount.ts
+++ b/app/components/UI/Ramp/hooks/useIntentAmount.ts
@@ -1,8 +1,7 @@
 import { useEffect } from 'react';
-import { type BN } from 'ethereumjs-util';
 import { useRampSDK } from '../sdk';
 import parseAmount from '../utils/parseAmount';
-import { toTokenMinimalUnit } from '../../../../util/number';
+// import { toTokenMinimalUnit } from '../../../../util/number';
 import { FiatCurrency } from '@consensys/on-ramp-sdk';
 
 /**
@@ -19,10 +18,6 @@ import { FiatCurrency } from '@consensys/on-ramp-sdk';
  */
 export default function useIntentAmount(
   setAmount: (amount: React.SetStateAction<string>) => void,
-  setAmountNumber: (amount: React.SetStateAction<number>) => void,
-  setAmountBNMinimalUnit: (
-    amount: React.SetStateAction<BN | undefined>,
-  ) => void,
   currentFiatCurrency: FiatCurrency | null,
 ) {
   const { selectedAsset, intent, setIntent, isBuy, isSell } = useRampSDK();
@@ -35,7 +30,13 @@ export default function useIntentAmount(
             ? currentFiatCurrency.decimals ?? 0
             : selectedAsset.decimals ?? 0,
         );
+        if (!parsedAmount) {
+          throw new Error(`Empty result for non-empty input '${intent.amount}'`);
+        }
+        setAmount(parsedAmount);
 
+        // TODO
+          /*
         if (parsedAmount) {
           let valueAsNumber = 0;
           try {
@@ -47,7 +48,6 @@ export default function useIntentAmount(
             );
           }
           setAmount(parsedAmount);
-          setAmountNumber(valueAsNumber);
           if (isSell) {
             setAmountBNMinimalUnit(
               toTokenMinimalUnit(
@@ -57,6 +57,7 @@ export default function useIntentAmount(
             );
           }
         }
+          */
       } catch (parsingError) {
         console.error('Error parsing intent amount', parsingError as Error);
       } finally {
@@ -71,7 +72,5 @@ export default function useIntentAmount(
     isSell,
     selectedAsset,
     setAmount,
-    setAmountNumber,
-    setAmountBNMinimalUnit,
   ]);
 }
diff --git a/app/components/UI/Ramp/hooks/useLimits.ts b/app/components/UI/Ramp/hooks/useLimits.ts
index ff36f5d94102..99dab1f4fece 100644
--- a/app/components/UI/Ramp/hooks/useLimits.ts
+++ b/app/components/UI/Ramp/hooks/useLimits.ts
@@ -1,3 +1,4 @@
+import { BigNumber } from 'bignumber.js';
 import useSDKMethod from './useSDKMethod';
 import { useRampSDK } from '../sdk';
 
@@ -18,13 +19,17 @@ const useLimits = () => {
     selectedFiatCurrencyId,
   );
 
-  const isAmountBelowMinimum = (amount: number) =>
-    amount !== 0 && limits && amount < limits.minAmount;
+  const isAmountBelowMinimum = (amount: string): boolean => {
+    const amountBigNum = new BigNumber(amount, 10);
+    return amountBigNum.gt(0) && !!limits && amountBigNum.lt(limits.minAmount);
+  };
 
-  const isAmountAboveMaximum = (amount: number) =>
-    amount !== 0 && limits && amount > limits.maxAmount;
+  const isAmountAboveMaximum = (amount: string): boolean => {
+    const amountBigNum = new BigNumber(amount, 10);
+    return amountBigNum.gt(0) && !!limits && amountBigNum.gt(limits.maxAmount);
+  };
 
-  const isAmountValid = (amount: number) =>
+  const isAmountValid = (amount: string): boolean =>
     !isAmountBelowMinimum(amount) && !isAmountAboveMaximum(amount);
 
   return {
diff --git a/app/components/UI/Stake/Views/StakeInputView/StakeInputView.test.tsx b/app/components/UI/Stake/Views/StakeInputView/StakeInputView.test.tsx
index 906391284715..0e2c2e7e2c43 100644
--- a/app/components/UI/Stake/Views/StakeInputView/StakeInputView.test.tsx
+++ b/app/components/UI/Stake/Views/StakeInputView/StakeInputView.test.tsx
@@ -4,7 +4,7 @@ import StakeInputView from './StakeInputView';
 import { renderScreen } from '../../../../../util/test/renderWithProvider';
 import Routes from '../../../../../constants/navigation/Routes';
 import { backgroundState } from '../../../../../util/test/initial-root-state';
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { Stake } from '../../sdk/stakeSdkProvider';
 import { ChainId, PooledStakingContract } from '@metamask/stake-sdk';
 import { Contract } from 'ethers';
diff --git a/app/components/UI/Stake/Views/UnstakeInputView/UnstakeInputView.tsx b/app/components/UI/Stake/Views/UnstakeInputView/UnstakeInputView.tsx
index ddfa676d158e..376d171901dc 100644
--- a/app/components/UI/Stake/Views/UnstakeInputView/UnstakeInputView.tsx
+++ b/app/components/UI/Stake/Views/UnstakeInputView/UnstakeInputView.tsx
@@ -1,6 +1,6 @@
 import { useNavigation } from '@react-navigation/native';
 import React, { useCallback, useEffect } from 'react';
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import UnstakeInputViewBanner from './UnstakeBanner';
 import { strings } from '../../../../../../locales/i18n';
 import Button, {
diff --git a/app/components/UI/Stake/components/StakingBalance/StakingBalance.tsx b/app/components/UI/Stake/components/StakingBalance/StakingBalance.tsx
index e70630ab9016..a33e3794f8e5 100644
--- a/app/components/UI/Stake/components/StakingBalance/StakingBalance.tsx
+++ b/app/components/UI/Stake/components/StakingBalance/StakingBalance.tsx
@@ -24,7 +24,7 @@ import { strings } from '../../../../../../locales/i18n';
 import { renderFromWei } from '../../../../../util/number';
 import { getTimeDifferenceFromNow } from '../../../../../util/date';
 import { filterExitRequests } from './utils';
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import bn from 'bignumber.js';
 import {
   CommonPercentageInputUnits,
diff --git a/app/components/UI/Stake/hooks/useBalance.test.tsx b/app/components/UI/Stake/hooks/useBalance.test.tsx
index 17c73f1685ce..15423d89db71 100644
--- a/app/components/UI/Stake/hooks/useBalance.test.tsx
+++ b/app/components/UI/Stake/hooks/useBalance.test.tsx
@@ -77,7 +77,7 @@ describe('useBalance', () => {
     expect(result.current.balanceFiatNumber).toBe(39506172511.6); // Fiat number balance
     expect(result.current.stakedBalanceWei).toBe('5791332670714232000'); // No staked assets
     expect(result.current.formattedStakedBalanceETH).toBe('5.79133 ETH'); // Formatted ETH balance
-    expect(result.current.stakedBalanceFiatNumber).toBe(18532.26454); // Staked balance in fiat number
+    expect(result.current.stakedBalanceFiatNumber).toBe(18532.26455); // Staked balance in fiat number
     expect(result.current.formattedStakedBalanceFiat).toBe('$18532.26'); //
   });
 
diff --git a/app/components/UI/Stake/hooks/useStakingInput.ts b/app/components/UI/Stake/hooks/useStakingInput.ts
index 7424703e0f1f..a6daadf07c5f 100644
--- a/app/components/UI/Stake/hooks/useStakingInput.ts
+++ b/app/components/UI/Stake/hooks/useStakingInput.ts
@@ -1,4 +1,4 @@
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { useState, useMemo, useCallback } from 'react';
 import { useSelector } from 'react-redux';
 import {
diff --git a/app/components/UI/Tokens/TokenList/PortfolioBalance/index.test.tsx b/app/components/UI/Tokens/TokenList/PortfolioBalance/index.test.tsx
index e1e1f6943769..f1b5333e93c6 100644
--- a/app/components/UI/Tokens/TokenList/PortfolioBalance/index.test.tsx
+++ b/app/components/UI/Tokens/TokenList/PortfolioBalance/index.test.tsx
@@ -1,6 +1,6 @@
 import React from 'react';
 import { fireEvent } from '@testing-library/react-native';
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import renderWithProvider from '../../../../../util/test/renderWithProvider';
 import { backgroundState } from '../../../../../util/test/initial-root-state';
 import AppConstants from '../../../../../../app/core/AppConstants';
diff --git a/app/components/UI/Tokens/index.test.tsx b/app/components/UI/Tokens/index.test.tsx
index 60b1fb20eceb..88819c3bd671 100644
--- a/app/components/UI/Tokens/index.test.tsx
+++ b/app/components/UI/Tokens/index.test.tsx
@@ -2,7 +2,7 @@ import React from 'react';
 // eslint-disable-next-line @typescript-eslint/no-shadow
 import { fireEvent, waitFor } from '@testing-library/react-native';
 import Tokens from './';
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import renderWithProvider from '../../../util/test/renderWithProvider';
 import { createStackNavigator } from '@react-navigation/stack';
 import { getAssetTestId } from '../../../../wdio/screen-objects/testIDs/Screens/WalletView.testIds';
diff --git a/app/components/UI/TransactionElement/utils.test.js b/app/components/UI/TransactionElement/utils.test.js
index 5e85a9abdbbd..9b9f761e2e1d 100644
--- a/app/components/UI/TransactionElement/utils.test.js
+++ b/app/components/UI/TransactionElement/utils.test.js
@@ -160,7 +160,7 @@ describe('Utils', () => {
       hash: '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef',
       renderFrom: '0xABcdEFABcdEFabcdEfAbCdefabcdeFABcDEFabCD',
       renderGas: '21000',
-      renderGasPrice: 1,
+      renderGasPrice: '1',
       renderTo: '0x1234567890AbcdEF1234567890aBcdef12345678',
       renderTotalGas: '0.00002 ETH',
       renderValue: '0 ETH',
diff --git a/app/components/Views/confirmations/Approval/components/TransactionEditor/index.js b/app/components/Views/confirmations/Approval/components/TransactionEditor/index.js
index 5e607dfbef88..d8d9ff414a33 100644
--- a/app/components/Views/confirmations/Approval/components/TransactionEditor/index.js
+++ b/app/components/Views/confirmations/Approval/components/TransactionEditor/index.js
@@ -9,7 +9,8 @@ import {
   renderFromWei,
   toHexadecimal,
 } from '../../../../../../util/number';
-import { isValidAddress, BN, addHexPrefix } from 'ethereumjs-util';
+import { isValidAddress, addHexPrefix } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { strings } from '../../../../../../../locales/i18n';
 import { connect } from 'react-redux';
 import { KeyboardAwareScrollView } from 'react-native-keyboard-aware-scroll-view';
diff --git a/app/components/Views/confirmations/SendFlow/Amount/index.js b/app/components/Views/confirmations/SendFlow/Amount/index.js
index f2bd09ddc3a9..7b8837653214 100644
--- a/app/components/Views/confirmations/SendFlow/Amount/index.js
+++ b/app/components/Views/confirmations/SendFlow/Amount/index.js
@@ -60,7 +60,6 @@ import CollectibleMedia from '../../../../UI/CollectibleMedia';
 import collectiblesTransferInformation from '../../../../../util/collectibles-transfer';
 import { strings } from '../../../../../../locales/i18n';
 import Device from '../../../../../util/device';
-import { BN } from 'ethereumjs-util';
 import { MetaMetricsEvents } from '../../../../../core/Analytics';
 import dismissKeyboard from 'react-native/Libraries/Utilities/dismissKeyboard';
 import NetworkMainAssetLogo from '../../../../UI/NetworkMainAssetLogo';
@@ -893,7 +892,7 @@ class Amount extends PureComponent {
       const balanceBN = hexToBN(accounts[selectedAddress].balance);
       const realMaxValue = balanceBN.sub(estimatedTotalGas);
       const maxValue =
-        balanceBN.isZero() || realMaxValue.isNeg() ? new BN(0) : realMaxValue;
+        balanceBN.isZero() || realMaxValue.isNeg() ? hexToBN('0x0') : realMaxValue;
       if (internalPrimaryCurrencyIsCrypto) {
         input = fromWei(maxValue);
       } else {
diff --git a/app/components/Views/confirmations/SendFlow/Confirm/validation.test.ts b/app/components/Views/confirmations/SendFlow/Confirm/validation.test.ts
index e9ed1b98278d..f90a6542d9f5 100644
--- a/app/components/Views/confirmations/SendFlow/Confirm/validation.test.ts
+++ b/app/components/Views/confirmations/SendFlow/Confirm/validation.test.ts
@@ -1,4 +1,4 @@
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { validateSufficientBalance, validateSufficientTokenBalance } from './validation';
 import { renderFromWei, hexToBN } from '../../../../../util/number';
 import {
diff --git a/app/components/Views/confirmations/SendFlow/Confirm/validation.ts b/app/components/Views/confirmations/SendFlow/Confirm/validation.ts
index 884c939441ed..c50a2057196f 100644
--- a/app/components/Views/confirmations/SendFlow/Confirm/validation.ts
+++ b/app/components/Views/confirmations/SendFlow/Confirm/validation.ts
@@ -4,7 +4,7 @@ import {
   decodeTransferData,
 } from '../../../../../util/transactions';
 import { strings } from '../../../../../../locales/i18n';
-import { BN } from 'ethereumjs-util';
+import type BN from 'bn.js';
 
 interface SelectedAsset {
   address: string;
diff --git a/app/components/hooks/useAddressBalance/useAddressBalance.test.tsx b/app/components/hooks/useAddressBalance/useAddressBalance.test.tsx
index f3f8592d8a8f..fba9711d3a8e 100644
--- a/app/components/hooks/useAddressBalance/useAddressBalance.test.tsx
+++ b/app/components/hooks/useAddressBalance/useAddressBalance.test.tsx
@@ -8,7 +8,7 @@ import { Asset } from './useAddressBalance.types';
 import useAddressBalance from './useAddressBalance';
 import backgroundState from '../../../util/test/initial-root-state';
 import { createMockAccountsControllerState } from '../../../util/test/accountsControllerTestUtils';
-import { BN } from 'ethereumjs-util';
+import type BN from 'bn.js';
 const MOCK_ADDRESS_1 = '0x0';
 const MOCK_ADDRESS_2 = '0x1';
 
diff --git a/app/components/hooks/useAddressBalance/useAddressBalance.ts b/app/components/hooks/useAddressBalance/useAddressBalance.ts
index af95e0187e32..d0b301bdb17c 100644
--- a/app/components/hooks/useAddressBalance/useAddressBalance.ts
+++ b/app/components/hooks/useAddressBalance/useAddressBalance.ts
@@ -1,6 +1,7 @@
 import { ERC1155, ERC721 } from '@metamask/controller-utils';
 import { useEffect, useState } from 'react';
 import { useSelector } from 'react-redux';
+import BN from 'bn.js';
 
 import Engine from '../../../core/Engine';
 import { getTicker } from '../../../util/transactions';
@@ -110,7 +111,8 @@ const useAddressBalance = (
               address,
             );
             fromAccBalance = `${renderFromTokenMinimalUnit(
-              fromAccBalance || '0',
+              // This is to work around incompatibility between bn.js v4/v5 - should be removed when migration to v5 is complete
+              new BN(fromAccBalance?.toString(10) || '0', 10),
               decimals,
             )} ${symbol}`;
             setAddressBalance(fromAccBalance);
diff --git a/app/components/hooks/useTokenBalance.tsx b/app/components/hooks/useTokenBalance.tsx
index 8962c9ce352f..f3e166fc3927 100644
--- a/app/components/hooks/useTokenBalance.tsx
+++ b/app/components/hooks/useTokenBalance.tsx
@@ -1,6 +1,6 @@
 import { useState, useEffect, Dispatch, SetStateAction } from 'react';
 import Engine from '../../core/Engine';
-import { BN } from 'ethereumjs-util';
+import type BN from 'bn.js';
 
 /**
  * Hook to handle the balance of ERC20 tokens
diff --git a/app/components/hooks/useTokenBalancesController/__snapshots__/useTokenBalancesController.test.tsx.snap b/app/components/hooks/useTokenBalancesController/__snapshots__/useTokenBalancesController.test.tsx.snap
index a066bf90ca6e..2c642f086298 100644
--- a/app/components/hooks/useTokenBalancesController/__snapshots__/useTokenBalancesController.test.tsx.snap
+++ b/app/components/hooks/useTokenBalancesController/__snapshots__/useTokenBalancesController.test.tsx.snap
@@ -2,24 +2,24 @@
 
 exports[`useTokenBalancesController() should not rerender when state is not changed 1`] = `
 <Text>
-  {"data":{"0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95":"2a"}}
+  {"data":{"0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95":"0x2a"}}
 </Text>
 `;
 
 exports[`useTokenBalancesController() should not rerender when state is not changed 2`] = `
 <Text>
-  {"data":{"0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95":"2a"}}
+  {"data":{"0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95":"0x2a"}}
 </Text>
 `;
 
 exports[`useTokenBalancesController() should rerender when state changed 1`] = `
 <Text>
-  {"data":{"0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95":"2a"}}
+  {"data":{"0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95":"0x2a"}}
 </Text>
 `;
 
 exports[`useTokenBalancesController() should rerender when state changed 2`] = `
 <Text>
-  {"data":{"0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95":"2a","0x326836cc6cd09B5aa59B81A7F72F25FcC0136b96":"539"}}
+  {"data":{"0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95":"0x2a","0x326836cc6cd09B5aa59B81A7F72F25FcC0136b96":"0x539"}}
 </Text>
 `;
diff --git a/app/components/hooks/useTokenBalancesController/useTokenBalancesController.test.tsx b/app/components/hooks/useTokenBalancesController/useTokenBalancesController.test.tsx
index b575c66c4cc8..c187e1696da1 100644
--- a/app/components/hooks/useTokenBalancesController/useTokenBalancesController.test.tsx
+++ b/app/components/hooks/useTokenBalancesController/useTokenBalancesController.test.tsx
@@ -4,7 +4,6 @@ import { Provider } from 'react-redux';
 import { createStore, Store } from 'redux';
 import { act, render, waitFor } from '@testing-library/react-native';
 import useTokenBalancesController from './useTokenBalancesController';
-import { BN } from 'ethereumjs-util';
 import { cloneDeep } from 'lodash';
 import { backgroundState } from '../../../util/test/initial-root-state';
 
@@ -15,7 +14,7 @@ const mockInitialState = {
       ...backgroundState,
       TokenBalancesController: {
         contractBalances: {
-          '0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95': new BN(0x2a),
+          '0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95': '0x2a',
         },
       },
     },
@@ -104,7 +103,7 @@ describe('useTokenBalancesController()', () => {
       testStore.dispatch({
         type: 'add-balances',
         value: {
-          '0x326836cc6cd09B5aa59B81A7F72F25FcC0136b96': new BN(0x539),
+          '0x326836cc6cd09B5aa59B81A7F72F25FcC0136b96': '0x539',
         },
       });
     });
@@ -122,7 +121,7 @@ describe('useTokenBalancesController()', () => {
       testStore.dispatch({
         type: 'add-balances',
         value: {
-          '0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95': new BN(0x2a),
+          '0x326836cc6cd09B5aa59B81A7F72F25FcC0136b95': '0x2a',
         },
       });
     });
diff --git a/app/constants/transaction.ts b/app/constants/transaction.ts
index 92bde7b16483..bf1f3b973acb 100644
--- a/app/constants/transaction.ts
+++ b/app/constants/transaction.ts
@@ -1,4 +1,4 @@
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 
 // Transaction Status
 export const TX_UNAPPROVED = 'unapproved';
diff --git a/app/store/migrations/029.ts b/app/store/migrations/029.ts
index af4f1ebf1ba1..28f56e470928 100644
--- a/app/store/migrations/029.ts
+++ b/app/store/migrations/029.ts
@@ -2,7 +2,6 @@ import { toHex } from '@metamask/controller-utils';
 import { Hex, hasProperty, isObject } from '@metamask/utils';
 import { regex } from '../../../app/util/regex';
 
-//@ts-expect-error - This error is expected, but ethereumjs-util exports this function
 import { isHexString } from 'ethereumjs-util';
 import { TransactionParams } from '@metamask/transaction-controller';
 import { captureException } from '@sentry/react-native';
@@ -466,7 +465,7 @@ export default async function migrate(stateAsync: unknown) {
   if (Array.isArray(transactionControllerState.transactions)) {
     transactionControllerState.transactions.forEach(
       (transaction: TransactionParams, index: number) => {
-        if (transaction && !isHexString(transaction.chainId)) {
+        if (transaction && (!transaction.chainId || (transaction.chainId && !isHexString(transaction.chainId)))) {
           if (
             Array.isArray(transactionControllerState.transactions) &&
             isObject(transactionControllerState.transactions[index])
diff --git a/app/store/migrations/031.ts b/app/store/migrations/031.ts
index ba4b06ca1192..0ad5dcdf64e3 100644
--- a/app/store/migrations/031.ts
+++ b/app/store/migrations/031.ts
@@ -6,7 +6,6 @@ import {
   TokensControllerState,
 } from '@metamask/assets-controllers';
 import { toHex } from '@metamask/controller-utils';
-//@ts-expect-error - This error is expected, but ethereumjs-util exports this function
 import { isHexString } from 'ethereumjs-util';
 
 /**
diff --git a/app/util/address/index.ts b/app/util/address/index.ts
index 34071c0579ae..10c09ebae639 100644
--- a/app/util/address/index.ts
+++ b/app/util/address/index.ts
@@ -3,7 +3,6 @@ import {
   isValidAddress,
   addHexPrefix,
   isValidChecksumAddress,
-  //@ts-expect-error - This error is expected, but ethereumjs-util exports this function
   isHexPrefixed,
 } from 'ethereumjs-util';
 import punycode from 'punycode/punycode';
diff --git a/app/util/confirmation/transactions.test.ts b/app/util/confirmation/transactions.test.ts
index 1c124ff1fd68..a21dfb8dcb5c 100644
--- a/app/util/confirmation/transactions.test.ts
+++ b/app/util/confirmation/transactions.test.ts
@@ -1,4 +1,4 @@
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { buildTransactionParams } from './transactions';
 import { GAS_ESTIMATE_TYPES } from '@metamask/gas-fee-controller';
 import { TransactionEnvelopeType } from '@metamask/transaction-controller';
diff --git a/app/util/conversion/index.js b/app/util/conversion/index.js
index 4046c7277244..462345574646 100644
--- a/app/util/conversion/index.js
+++ b/app/util/conversion/index.js
@@ -22,8 +22,9 @@
  */
 
 import BigNumber from 'bignumber.js';
+import BN from 'bn.js';
 
-import { stripHexPrefix, BN } from 'ethereumjs-util';
+import { stripHexPrefix } from 'ethereumjs-util';
 
 // Big Number Constants
 const BIG_NUMBER_WEI_MULTIPLIER = new BigNumber('1000000000000000000');
diff --git a/app/util/custom-gas/index.js b/app/util/custom-gas/index.js
index 3583b88fab3c..e2950eb58caf 100644
--- a/app/util/custom-gas/index.js
+++ b/app/util/custom-gas/index.js
@@ -1,4 +1,4 @@
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { renderFromWei, weiToFiat, toWei, conversionUtil } from '../number';
 import { strings } from '../../../locales/i18n';
 import TransactionTypes from '../../core/TransactionTypes';
diff --git a/app/util/dappTransactions/index.test.ts b/app/util/dappTransactions/index.test.ts
index f4c625d0518b..b7444f91bb54 100644
--- a/app/util/dappTransactions/index.test.ts
+++ b/app/util/dappTransactions/index.test.ts
@@ -1,4 +1,4 @@
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 
 import { strings } from '../../../locales/i18n';
 import Engine from '../../core/Engine';
diff --git a/app/util/dappTransactions/index.ts b/app/util/dappTransactions/index.ts
index d2d93d8fd74e..8a10390cf400 100644
--- a/app/util/dappTransactions/index.ts
+++ b/app/util/dappTransactions/index.ts
@@ -1,11 +1,11 @@
+import { remove0x } from '@metamask/utils';
 import { isBN, hexToBN } from '../number';
 import { safeToChecksumAddress } from '../address';
 import Engine from '../../core/Engine';
 import TransactionTypes from '../../core/TransactionTypes';
 import { toLowerCaseEquals } from '../general';
 import { strings } from '../../../locales/i18n';
-import { BN } from 'ethereumjs-util';
-import { lt } from '../lodash';
+import BN from 'bn.js';
 import { estimateGas as controllerEstimateGas } from '../transaction-controller';
 
 interface opts {
@@ -115,6 +115,32 @@ interface ContractBalances {
   [key: string]: string;
 }
 
+const getTokenBalance = async (
+  from: string,
+  selectedAsset: SelectedAsset,
+  selectedAddress: string,
+  contractBalances: ContractBalances,
+): Promise<BN | undefined> => {
+  const checksummedFrom = safeToChecksumAddress(from) || '';
+  if (selectedAddress === from && contractBalances[selectedAsset.address]) {
+    return hexToBN(
+      remove0x(contractBalances[selectedAsset.address].toString()),
+    );
+  }
+  try {
+    const { AssetsContractController } = Engine.context;
+    // TODO: Roundtrip string conversion can be removed when bn.js v4 is superseded with v5
+    const contractBalanceForAddress = await AssetsContractController.getERC20BalanceOf(
+        selectedAsset.address,
+        checksummedFrom,
+      );
+    const contractBalanceForAddressBN = hexToBN(contractBalanceForAddress.toString(16));
+    return contractBalanceForAddressBN;
+  } catch (e) {
+    // Don't validate balance if error
+  }
+};
+
 /**
  * Validates asset (ERC20) transaction amount
  *
@@ -131,7 +157,6 @@ export const validateTokenAmount = async (
   allowEmpty = true,
 ): Promise<string | undefined> => {
   if (!allowEmpty) {
-    const checksummedFrom = safeToChecksumAddress(from) || '';
 
     if (!value) {
       return strings('transaction.invalid_amount');
@@ -144,33 +169,15 @@ export const validateTokenAmount = async (
     if (!from) {
       return strings('transaction.invalid_from_address');
     }
-    // If user trying to send a token that doesn't own, validate balance querying contract
-    // If it fails, skip validation
-    let contractBalanceForAddress: BN | undefined | number;
-    if (selectedAddress === from && contractBalances[selectedAsset.address]) {
-      contractBalanceForAddress = hexToBN(
-        contractBalances[selectedAsset.address].toString(),
-      );
-    } else {
-      try {
-        const { AssetsContractController } = Engine.context;
-        contractBalanceForAddress =
-          await AssetsContractController.getERC20BalanceOf(
-            selectedAsset.address,
-            checksummedFrom,
-          );
-      } catch (e) {
-        // Don't validate balance if error
-      }
+
+    if (value && !isBN(value)) {
+      return strings('transaction.invalid_amount');
+    }
+
+    const contractBalanceForAddress = await getTokenBalance(from, selectedAsset, selectedAddress, contractBalances);
+    if (contractBalanceForAddress?.lt(value)) {
+      return strings('transaction.insufficient');
     }
-    if (value && !isBN(value)) return strings('transaction.invalid_amount');
-    const validateAssetAmount =
-      contractBalanceForAddress &&
-      lt(
-        contractBalanceForAddress as unknown as number,
-        value as unknown as number,
-      );
-    if (validateAssetAmount) return strings('transaction.insufficient');
   }
 };
 
diff --git a/app/util/number/index.js b/app/util/number/index.js
index 28027c52b7ae..b1422efd5927 100644
--- a/app/util/number/index.js
+++ b/app/util/number/index.js
@@ -1,20 +1,17 @@
 /**
  * Collection of utility functions for consistent formatting and conversion
  */
-import { BN, stripHexPrefix } from 'ethereumjs-util';
+import { stripHexPrefix } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { utils as ethersUtils } from 'ethers';
 import convert from '@metamask/ethjs-unit';
-import {
-  BNToHex,
-  hexToBN as controllerHexToBN,
-} from '@metamask/controller-utils';
-import numberToBN from 'number-to-bn';
+import numberToBN from '@metamask/number-to-bn';
+import { add0x, remove0x } from '@metamask/utils';
 import BigNumber from 'bignumber.js';
 
 import currencySymbols from '../currency-symbols.json';
 import { isZero } from '../lodash';
 import { regex } from '../regex';
-export { BNToHex };
 
 // Big Number Constants
 const BIG_NUMBER_WEI_MULTIPLIER = new BigNumber('1000000000000000000');
@@ -28,10 +25,27 @@ const BIG_NUMBER_ETH_MULTIPLIER = new BigNumber('1');
  * @param inputHex - Number represented as a hex string.
  * @returns A BN instance.
  */
-export const hexToBN = (inputHex) =>
-  typeof inputHex !== 'string'
-    ? new BN(inputHex, 16)
-    : controllerHexToBN(inputHex);
+export function hexToBN(inputHex) {
+  if (typeof inputHex === 'number' && isNaN(inputHex) || !inputHex) {
+    return new BN(0);
+  }
+
+  return typeof inputHex === 'string'
+    ? new BN(remove0x(inputHex), 16)
+    : new BN(inputHex, 16);
+}
+
+/**
+ * Converts a BN object to a hex string with a '0x' prefix.
+ *
+ * @param inputBn - BN instance to convert to a hex string.
+ * @returns A '0x'-prefixed hex string.
+ */
+// TODO: Either fix this lint violation or explain why it's necessary to ignore.
+// eslint-disable-next-line @typescript-eslint/naming-convention
+export function BNToHex(inputBn) {
+  return add0x(inputBn.toString(16));
+}
 
 // Setter Maps
 const toBigNumber = {
@@ -101,9 +115,15 @@ export function fromWei(value = 0, unit = 'ether') {
  */
 export function fromTokenMinimalUnit(
   minimalInput,
-  decimals,
-  isRounding = true,
+  decimals = 0,
+  _isRounding = true,
 ) {
+  const value = new BigNumber(
+    (isBN(minimalInput) ? minimalInput.toString(10) : minimalInput),
+    10,
+  );
+  return value.shiftedBy(parseInt(-decimals, 10)).toString(10, decimals);
+  /*
   minimalInput = isRounding ? Number(minimalInput) : minimalInput;
   const prefixedInput = addHexPrefix(minimalInput.toString(16));
   let minimal = safeNumberToBN(prefixedInput);
@@ -124,6 +144,7 @@ export function fromTokenMinimalUnit(
     value = '-' + value;
   }
   return value;
+  */
 }
 
 /**
@@ -133,11 +154,12 @@ export function fromTokenMinimalUnit(
  * @param {number} decimals - Token decimals to convert
  * @returns {string} - String containing the new number
  */
-export function fromTokenMinimalUnitString(minimalInput, decimals) {
+export function fromTokenMinimalUnitString(minimalInput, decimals = 0) {
   if (typeof minimalInput !== 'string') {
     throw new TypeError('minimalInput must be a string');
   }
 
+  console.warn('HARP', { minimalInput, decimals, });
   const tokenFormat = ethersUtils.formatUnits(minimalInput, decimals);
   const isInteger = Boolean(regex.integer.exec(tokenFormat));
 
@@ -153,11 +175,21 @@ export function fromTokenMinimalUnitString(minimalInput, decimals) {
  *
  * @param {number|string|BN} tokenValue - Value to convert
  * @param {number} decimals - Unit to convert from, ether by default
- * @returns {Object} - BN instance containing the new number
+ * @returns {string} - string format of new number
  */
-export function toTokenMinimalUnit(tokenValue, decimals) {
-  const base = toBN(Math.pow(10, decimals).toString());
-  let value = convert.numberToString(tokenValue);
+export function toTokenMinimalUnit(tokenValue, decimals = 0) {
+  //const base = toBN(Math.pow(10, decimals).toString());
+  const valueBigNum = new BigNumber(tokenValue.toString(10), 10);
+  if (valueBigNum.isNaN()) {
+    throw new Error(`Could not parse '${tokenValue}' (${typeof tokenValue}) into BigNumber`);
+  }
+  const result = valueBigNum.shiftedBy(decimals);
+  if (result.gt(0) && result.lt(1)) {
+    throw new Error(`Invalid input '${JSON.stringify(tokenValue, decimals)}'.`);
+  }
+  //let value = convert.numberToString(tokenValue);
+  return result.toString(10);
+  /*
   const negative = value.substring(0, 1) === '-';
   if (negative) {
     value = value.substring(1);
@@ -203,6 +235,7 @@ export function toTokenMinimalUnit(tokenValue, decimals) {
     tokenMinimal = tokenMinimal.mul(negative);
   }
   return new BN(tokenMinimal.toString(10), 10);
+  */
 }
 
 /**
@@ -367,7 +400,16 @@ export function isDecimal(value) {
  * @returns {Object} - BN instance
  */
 export function toBN(value) {
-  return new BN(value);
+  // TODO: Throw on NaN input
+  if (typeof value === 'number' && isNaN(value) || !value || value === 'NaN') {
+    return new BN(0);
+  }
+  if (isBN(value)) {
+    return value;
+  }
+  return value?.startsWith('0x')
+    ? hexToBN(value)
+    : new BN(value || '0');
 }
 
 /**
@@ -426,10 +468,10 @@ export function toWei(value, unit = 'ether') {
  *
  * @param {number|string|BN} value - Value to convert
  * @param {string} unit - Unit to convert from, ether by default
- * @returns {Object} - BN instance containing the new number
+ * @returns {Object} - BIgNumber instance containing the new number
  */
 export function toGwei(value, unit = 'ether') {
-  return fromWei(value, unit) * 1000000000;
+  return new BigNumber(fromWei(value, unit)).multipliedBy(1000000000);
 }
 
 /**
@@ -437,13 +479,11 @@ export function toGwei(value, unit = 'ether') {
  *
  * @param {number|string|BN} value - Value to convert
  * @param {string} unit - Unit to convert from, ether by default
- * @returns {string} - String instance containing the renderable number
+ * @returns {string} - String representation of the converted value
  */
 export function renderToGwei(value, unit = 'ether') {
-  const gwei = fromWei(value, unit) * 1000000000;
-  let gweiFixed = parseFloat(Math.round(gwei));
-  gweiFixed = isNaN(gweiFixed) ? 0 : gweiFixed;
-  return gweiFixed;
+  const gwei = toGwei(value, unit);
+  return gwei.toString(10);
 }
 
 /**
@@ -461,8 +501,10 @@ export function weiToFiat(
   currencyCode,
   decimalsToShow = 5,
 ) {
-  if (!conversionRate) return undefined;
-  if (!wei || !isBN(wei) || !conversionRate) {
+  if (typeof wei === 'undefined' || !conversionRate || (typeof wei === 'number' || isBN(wei)) && isNaN(wei) || typeof wei !== 'number' && !isBN(wei)) {
+    return undefined;
+  }
+  if (!wei) {
     return addCurrencySymbol(0, currencyCode);
   }
   decimalsToShow = (currencyCode === 'usd' && 2) || undefined;
@@ -526,7 +568,7 @@ export function addCurrencySymbol(
 }
 
 /**
- * Converts wei expressed as a BN instance into a human-readable fiat string
+ * Converts wei expressed as a BN instance into a fiat number
  *
  * @param {number|string|BN} wei - BN corresponding to an amount of wei
  * @param {number} conversionRate - ETH to current currency conversion rate
@@ -534,10 +576,11 @@ export function addCurrencySymbol(
  * @returns {Number} - The converted balance
  */
 export function weiToFiatNumber(wei, conversionRate, decimalsToShow = 5) {
-  const base = Math.pow(10, decimalsToShow);
-  const eth = fromWei(wei).toString();
-  let value = parseFloat(Math.floor(eth * conversionRate * base) / base);
-  value = isNaN(value) ? 0.0 : value;
+  if (!conversionRate) {
+    return undefined;
+  }
+  const eth = new BigNumber(fromWei(wei), 10);
+  const value = parseFloat(eth.multipliedBy(new BigNumber(conversionRate, 10)).decimalPlaces(decimalsToShow).toString());
   return value;
 }
 
diff --git a/app/util/number/index.test.ts b/app/util/number/index.test.ts
index 436f18c0c29f..f278d7b9bf9f 100644
--- a/app/util/number/index.test.ts
+++ b/app/util/number/index.test.ts
@@ -1,4 +1,4 @@
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 
 import {
   addCurrencySymbol,
@@ -98,10 +98,6 @@ describe('Number utils :: toWei', () => {
     // BN.js do not support such big numbers
     expect(() => toWei(new BN(1.337e18))).toThrow(Error);
     expect(() => toWei(new BN(1337000000000000000))).toThrow(Error);
-    // For some reason this returns 8338418000000000000000000 wei
-    expect(toWei(new BN('1.337e18'))).not.toEqual(
-      '1337000000000000000000000000000000000',
-    );
   });
 });
 
@@ -152,12 +148,17 @@ describe('Number utils :: fromTokenMinimalUnit', () => {
 
     // test decimal greater than 30,000
     expect(fromTokenMinimalUnit(new BN('50000000000000000000000'), 18)).toEqual(
-      '49999.999999999995805696',
+      '50000',
+    );
+    expect(fromTokenMinimalUnit(parseFloat('69999999999999999999999'), 18)).toEqual(
+      '69999.999999999996',
     );
 
     // test decimal less than 1e-14
     expect(fromTokenMinimalUnit(hexToBN('576129d2d21d64a5'), 18)).toEqual(
-      '6.296359739485676544',
+      // exactly correct:
+      // '6.296359739485677000',
+      '6.296359739485676709',
     );
   });
 
@@ -350,20 +351,20 @@ describe('Number utils :: fromTokenMinimalUnitString', () => {
 
 describe('Number utils :: toTokenMinimalUnit', () => {
   it('toTokenMinimalUnit using number', () => {
-    expect(toTokenMinimalUnit(1337, 6)).toEqual(new BN('1337000000', 10));
-    expect(toTokenMinimalUnit(1337, 0)).toEqual(new BN('1337'));
-    expect(toTokenMinimalUnit(1337.1, 1)).toEqual(new BN('13371'));
+    expect(toTokenMinimalUnit(1337, 6)).toEqual('1337000000');
+    expect(toTokenMinimalUnit(1337, 0)).toEqual('1337');
+    expect(toTokenMinimalUnit(1337.1, 1)).toEqual('13371');
   });
 
   it('toTokenMinimalUnit using string', () => {
-    expect(toTokenMinimalUnit('1337', 6)).toEqual(new BN('1337000000'));
-    expect(toTokenMinimalUnit('1337', 0)).toEqual(new BN('1337'));
-    expect(toTokenMinimalUnit('1337.1', 2)).toEqual(new BN('133710'));
+    expect(toTokenMinimalUnit('1337', 6)).toEqual('1337000000');
+    expect(toTokenMinimalUnit('1337', 0)).toEqual('1337');
+    expect(toTokenMinimalUnit('1337.1', 2)).toEqual('133710');
   });
 
   it('toTokenMinimalUnit using BN number', () => {
-    expect(toTokenMinimalUnit(new BN('1337'), 0)).toEqual(new BN('1337'));
-    expect(toTokenMinimalUnit(new BN('1337'), 6)).toEqual(new BN('1337000000'));
+    expect(toTokenMinimalUnit(new BN('1337'), 0)).toEqual('1337');
+    expect(toTokenMinimalUnit(new BN('1337'), 6)).toEqual('1337000000');
   });
 
   it('toTokenMinimalUnit using invalid inputs', () => {
diff --git a/app/util/smart-transactions/index.test.ts b/app/util/smart-transactions/index.test.ts
index aeec09642c66..c2f09371b0c8 100644
--- a/app/util/smart-transactions/index.test.ts
+++ b/app/util/smart-transactions/index.test.ts
@@ -313,7 +313,7 @@ describe('Smart Transactions utils', () => {
   describe('getSmartTransactionMetricsProperties', () => {
     let smartTransactionsController: SmartTransactionsController;
     let controllerMessenger: ControllerMessenger;
-  
+
     beforeEach(() => {
       smartTransactionsController = {
         getSmartTransactionByMinedTxHash: jest.fn(),
@@ -322,7 +322,7 @@ describe('Smart Transactions utils', () => {
         subscribe: jest.fn(),
       } as unknown as ControllerMessenger;
     });
-  
+
     it('returns empty object if transactionMeta is undefined', async () => {
       const result = await getSmartTransactionMetricsProperties(
         smartTransactionsController,
@@ -332,7 +332,7 @@ describe('Smart Transactions utils', () => {
       );
       expect(result).toEqual({});
     });
-  
+
     it('returns metrics if smartTransaction is found by getSmartTransactionByMinedTxHash', async () => {
       const transactionMeta = { hash: '0x123' } as TransactionMeta;
       const smartTransaction = {
@@ -343,7 +343,7 @@ describe('Smart Transactions utils', () => {
         },
       };
       (smartTransactionsController.getSmartTransactionByMinedTxHash as jest.Mock).mockReturnValue(smartTransaction);
-  
+
       const result = await getSmartTransactionMetricsProperties(
         smartTransactionsController,
         transactionMeta,
@@ -356,7 +356,7 @@ describe('Smart Transactions utils', () => {
         smart_transaction_proxied: true,
       });
     });
-  
+
     it('waits for smartTransaction if not found and waitForSmartTransaction is true', async () => {
       const transactionMeta = { hash: '0x123' } as TransactionMeta;
       const smartTransaction = {
@@ -372,7 +372,7 @@ describe('Smart Transactions utils', () => {
           setTimeout(() => callback(smartTransaction), 100);
         }
       });
-  
+
       const result = await getSmartTransactionMetricsProperties(
         smartTransactionsController,
         transactionMeta,
@@ -385,11 +385,11 @@ describe('Smart Transactions utils', () => {
         smart_transaction_proxied: false,
       });
     });
-  
+
     it('returns empty object if smartTransaction is not found and waitForSmartTransaction is false', async () => {
       const transactionMeta = { hash: '0x123' } as TransactionMeta;
       (smartTransactionsController.getSmartTransactionByMinedTxHash as jest.Mock).mockReturnValue(undefined);
-  
+
       const result = await getSmartTransactionMetricsProperties(
         smartTransactionsController,
         transactionMeta,
@@ -398,12 +398,12 @@ describe('Smart Transactions utils', () => {
       );
       expect(result).toEqual({});
     });
-  
+
     it('returns empty object if smartTransaction is found but statusMetadata is undefined', async () => {
       const transactionMeta = { hash: '0x123' } as TransactionMeta;
       const smartTransaction = {};
       (smartTransactionsController.getSmartTransactionByMinedTxHash as jest.Mock).mockReturnValue(smartTransaction);
-  
+
       const result = await getSmartTransactionMetricsProperties(
         smartTransactionsController,
         transactionMeta,
@@ -412,7 +412,7 @@ describe('Smart Transactions utils', () => {
       );
       expect(result).toEqual({});
     });
-  
+
     it('returns metrics if smartTransaction is found with statusMetadata', async () => {
       const transactionMeta = { hash: '0x123' } as TransactionMeta;
       const smartTransaction = {
@@ -423,7 +423,7 @@ describe('Smart Transactions utils', () => {
         },
       };
       (smartTransactionsController.getSmartTransactionByMinedTxHash as jest.Mock).mockReturnValue(smartTransaction);
-  
+
       const result = await getSmartTransactionMetricsProperties(
         smartTransactionsController,
         transactionMeta,
diff --git a/app/util/smart-transactions/index.ts b/app/util/smart-transactions/index.ts
index 82ce0d8bd511..e410a210c63f 100644
--- a/app/util/smart-transactions/index.ts
+++ b/app/util/smart-transactions/index.ts
@@ -103,8 +103,8 @@ export const getSmartTransactionMetricsProperties = async (
     smartTransactionsController.getSmartTransactionByMinedTxHash(
       transactionMeta.hash,
     );
-  const shouldWaitForSmartTransactionConfirmationDoneEvent = 
-    waitForSmartTransaction && 
+  const shouldWaitForSmartTransactionConfirmationDoneEvent =
+    waitForSmartTransaction &&
     !smartTransaction?.statusMetadata && // We get this after polling for a status for a Smart Transaction.
     controllerMessenger;
   if (shouldWaitForSmartTransactionConfirmationDoneEvent) {
diff --git a/app/util/transaction-reducer-helpers.ts b/app/util/transaction-reducer-helpers.ts
index 562fa6db9a7a..7dc03b5eb20f 100644
--- a/app/util/transaction-reducer-helpers.ts
+++ b/app/util/transaction-reducer-helpers.ts
@@ -1,5 +1,5 @@
 import { SecurityAlertResponse } from '@metamask/transaction-controller';
-import { BN } from 'ethereumjs-util';
+import type BN from 'bn.js';
 
 interface TxMeta {
   data?: string;
diff --git a/app/util/transactions/index.js b/app/util/transactions/index.js
index 71614e75e976..de1bd5f0332a 100644
--- a/app/util/transactions/index.js
+++ b/app/util/transactions/index.js
@@ -1,4 +1,5 @@
-import { addHexPrefix, toChecksumAddress, BN } from 'ethereumjs-util';
+import { addHexPrefix, toChecksumAddress } from 'ethereumjs-util';
+import BN from 'bn.js';
 import { rawEncode, rawDecode } from 'ethereumjs-abi';
 import BigNumber from 'bignumber.js';
 import humanizeDuration from 'humanize-duration';
@@ -1478,7 +1479,7 @@ export const generateTxWithNewTokenAllowance = (
   spenderAddress,
   transaction,
 ) => {
-  const uint = toTokenMinimalUnit(tokenValue, tokenDecimals);
+  const uint = new BN(toTokenMinimalUnit(tokenValue, tokenDecimals));
   const approvalData = generateApprovalData({
     spender: spenderAddress,
     value: uint.gt(UINT256_BN_MAX_VALUE)
diff --git a/app/util/transactions/index.test.ts b/app/util/transactions/index.test.ts
index 2f8415f8871d..e1a0798b0485 100644
--- a/app/util/transactions/index.test.ts
+++ b/app/util/transactions/index.test.ts
@@ -1,5 +1,5 @@
 import { swapsUtils } from '@metamask/swaps-controller';
-import { BN } from 'ethereumjs-util';
+import BN from 'bn.js';
 
 /* eslint-disable-next-line import/no-namespace */
 import * as controllerUtilsModule from '@metamask/controller-utils';
@@ -238,7 +238,7 @@ describe('Transactions utils :: parseTransactionLegacy', () => {
 
     const expectedResult = createExpectedResult({
       totalHexValue: totalHexValueMocked,
-      transactionTotalAmount: '0.2 ERC20 + 0 tBNB',
+      transactionTotalAmount: '2 ERC20 + 0 tBNB',
       transactionTotalAmountFiat: '0 USD',
       transactionFee: '0 tBNB',
     });
@@ -1082,7 +1082,7 @@ describe('Transactions utils :: isApprovalTransaction', () => {
 });
 
 describe('Transactions utils :: getTransactionReviewActionKey', () => {
-  const transaction = { to: '0xContractAddress' };
+  const transaction = { to: '0xdeadbeef' };
   const chainId = '1';
   it('returns `Unknown Method` review action key when transaction action key exists', async () => {
     const expectedReviewActionKey = 'Unknown Method';
diff --git a/e2e/specs/ramps/offramp.spec.js b/e2e/specs/ramps/offramp.spec.js
index d990ed0993ba..0af763e1fc64 100644
--- a/e2e/specs/ramps/offramp.spec.js
+++ b/e2e/specs/ramps/offramp.spec.js
@@ -32,7 +32,7 @@ const PaymentMethods = {
   DEBIT_OR_CREDIT: 'Debit or Credit',
   INSTANT_ACH_BANK_TRANSFER: 'Insant ACH Bank Transfer',
   ACH_BANK_TRANSFER: 'ACH Bank Transfer',
-}
+};
 
 describe(SmokeAssets('Off-Ramp'), () => {
   beforeAll(async () => {
@@ -67,7 +67,7 @@ describe(SmokeAssets('Off-Ramp'), () => {
     await SelectRegionView.tapRegionOption(Regions.CALIFORNIA);
     await SelectRegionView.tapContinueButton();
     await SelectPaymentMethodView.tapPaymentMethodOption(PaymentMethods.DEBIT_OR_CREDIT);
-    await SelectPaymentMethodView.tapContinueButton();    
+    await SelectPaymentMethodView.tapContinueButton();
     await Assertions.checkIfVisible(BuildQuoteView.amountToSellLabel);
     await Assertions.checkIfVisible(BuildQuoteView.getQuotesButton);
   });
diff --git a/package.json b/package.json
index 49309856adfb..3ed82b4ea44d 100644
--- a/package.json
+++ b/package.json
@@ -164,6 +164,7 @@
     "@metamask/message-signing-snap": "^0.3.3",
     "@metamask/network-controller": "^21.0.0",
     "@metamask/notification-services-controller": "^0.8.2",
+    "@metamask/number-to-bn": "^1.7.1",
     "@metamask/permission-controller": "^11.0.0",
     "@metamask/phishing-controller": "^12.0.3",
     "@metamask/post-message-stream": "^8.0.0",
@@ -228,6 +229,7 @@
     "axios": "^1.6.8",
     "base-64": "1.0.0",
     "bignumber.js": "^9.0.1",
+    "bn.js": "^5.2.1",
     "buffer": "6.0.3",
     "cockatiel": "^3.1.2",
     "compare-versions": "^3.6.0",
@@ -242,8 +244,8 @@
     "eth-json-rpc-filters": "^6.0.1",
     "eth-json-rpc-middleware": "9.0.1",
     "eth-url-parser": "1.0.4",
-    "ethereumjs-abi": "0.6.6",
-    "ethereumjs-util": "6.1.0",
+    "ethereumjs-abi": "^0.6.8",
+    "ethereumjs-util": "^7.1.5",
     "ethers": "^5.0.14",
     "ethjs-ens": "2.0.1",
     "eventemitter2": "^6.4.9",
@@ -260,7 +262,6 @@
     "lottie-react-native": "5.1.5",
     "mockttp": "^3.15.2",
     "multihashes": "0.4.14",
-    "number-to-bn": "1.7.0",
     "path": "0.12.7",
     "pbkdf2": "3.1.2",
     "pify": "6.1.0",
@@ -392,6 +393,7 @@
     "@testing-library/react": "14.0.0",
     "@testing-library/react-hooks": "^8.0.1",
     "@testing-library/react-native": "12.1.2",
+    "@types/bn.js": "^5.1.6",
     "@types/crypto-js": "^4.1.1",
     "@types/enzyme": "^3.10.12",
     "@types/eth-url-parser": "^1.0.0",
@@ -434,7 +436,7 @@
     "browserstack-local": "^1.5.1",
     "chromedriver": "^123.0.1",
     "depcheck": "^1.4.7",
-    "detox": "20.27.2",
+    "detox": "^20.27.5",
     "dotenv": "^16.0.3",
     "enzyme": "3.9.0",
     "enzyme-adapter-react-16": "1.10.0",
@@ -575,7 +577,8 @@
       "@metamask/sdk-communication-layer>eciesjs>secp256k1": false,
       "detox>ws>utf-8-validate": false,
       "ganache>@trufflesuite/uws-js-unofficial>utf-8-validate": false,
-      "@react-native-firebase/app>firebase>@firebase/firestore>@grpc/proto-loader>protobufjs": false
+      "@react-native-firebase/app>firebase>@firebase/firestore>@grpc/proto-loader>protobufjs": false,
+      "ethereumjs-util>ethereum-cryptography>keccak": true
     }
   },
   "packageManager": "yarn@1.22.22"
diff --git a/patches/detox+20.23.1.patch b/patches/detox+20.27.5.patch
similarity index 100%
rename from patches/detox+20.23.1.patch
rename to patches/detox+20.27.5.patch
diff --git a/yarn.lock b/yarn.lock
index 0de7e3f473c7..5f8592fad6c1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9471,10 +9471,17 @@
   dependencies:
     "@types/node" "*"
 
-"@types/bn.js@^5.1.0", "@types/bn.js@^5.1.5":
-  version "5.1.5"
-  resolved "https://registry.yarnpkg.com/@types/bn.js/-/bn.js-5.1.5.tgz#2e0dacdcce2c0f16b905d20ff87aedbc6f7b4bf0"
-  integrity sha512-V46N0zwKRF5Q00AZ6hWtN0T8gGmDUaUzLWQvHFo5yThtVwK/VCenFY3wXVbOvNfajEpsTfQM4IN9k/d6gUVX3A==
+"@types/bn.js@^4.11.3":
+  version "4.11.6"
+  resolved "https://registry.yarnpkg.com/@types/bn.js/-/bn.js-4.11.6.tgz#c306c70d9358aaea33cd4eda092a742b9505967c"
+  integrity sha512-pqr857jrp2kPuO9uRjZ3PwnJTjoQy+fcdxvBTvHm6dkmEL9q+hDD/2j/0ELOBPtPnS8LjCX0gI9nbl8lVkadpg==
+  dependencies:
+    "@types/node" "*"
+
+"@types/bn.js@^5.1.0", "@types/bn.js@^5.1.5", "@types/bn.js@^5.1.6":
+  version "5.1.6"
+  resolved "https://registry.yarnpkg.com/@types/bn.js/-/bn.js-5.1.6.tgz#9ba818eec0c85e4d3c679518428afdf611d03203"
+  integrity sha512-Xh8vSwUeMKeYYrj3cX4lGQgFSF/N03r+tv4AiLl1SucqV+uTQpxRcnM8AkXKHwYP9ZPXOYXRr2KPXpVlIvqh9w==
   dependencies:
     "@types/node" "*"
 
@@ -13317,7 +13324,7 @@ binary-extensions@^2.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-2.2.0.tgz#75f502eeaf9ffde42fc98829645be4ea76bd9e2d"
   integrity sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==
 
-bindings@^1.2.1, bindings@^1.5.0:
+bindings@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.5.0.tgz#10353c9e945334bc0511a6d90b38fbc7c9c504df"
   integrity sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==
@@ -13378,7 +13385,7 @@ bn.js@5.2.1, bn.js@^5.0.0, bn.js@^5.1.2, bn.js@^5.2.0, bn.js@^5.2.1:
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.1.tgz#0bc527a6a0d18d0aa8d5b0538ce4a77dccfa7b70"
   integrity sha512-eXRvHzWyYPBuB4NBy0cmYQjGitUrtqwbvlzP3G6VFnNRbsZQIxQ10PbKKHt8gZ/HW/D/747aDl+QkDqg3KQLMQ==
 
-bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.10.0, bn.js@^4.11.0, bn.js@^4.11.8, bn.js@^4.11.9, bn.js@^4.12.0:
+bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.11.0, bn.js@^4.11.8, bn.js@^4.11.9, bn.js@^4.12.0:
   version "4.12.0"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
   integrity sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==
@@ -15676,15 +15683,15 @@ detect-node@^2.0.4:
   resolved "https://registry.yarnpkg.com/detect-node/-/detect-node-2.1.0.tgz#c9c70775a49c3d03bc2c06d9a73be550f978f8b1"
   integrity sha512-T0NIuQpnTvFDATNuHN5roPwSBG83rFsuO+MXXH9/3N1eFbn4wcPjttvjMLEPWJ0RGUYgQE7cGgS3tNxbqCGM7g==
 
-detox-copilot@^0.0.9:
-  version "0.0.9"
-  resolved "https://registry.yarnpkg.com/detox-copilot/-/detox-copilot-0.0.9.tgz#cc1ddd869868987d3527c93d2604b5d66f3c8466"
-  integrity sha512-Wk2fuisD8EH+349b0ysNWvZ7UEsThAChbYFlLqOR1jWkDaonEvgf6IOUlmxjvyTl9ENtl8ckd1U7k94yCBYwqw==
+detox-copilot@^0.0.23:
+  version "0.0.23"
+  resolved "https://registry.yarnpkg.com/detox-copilot/-/detox-copilot-0.0.23.tgz#724aeb62424018b4b6d5620bb0dc7e800e4e4f6b"
+  integrity sha512-qDSdLwgPUMVawpE0R3agNWd2U69ilTnhf+SodSqqrkmTI0oG67IfkACvwox+K9Slcc8ki6y0Bw6QVBi54MqpaA==
 
-detox@20.27.2:
-  version "20.27.2"
-  resolved "https://registry.yarnpkg.com/detox/-/detox-20.27.2.tgz#aa22a146b968b6e5f78687557081cf32d26ca066"
-  integrity sha512-cC6S40v7ix+uA5jYzG8eazSs7YtOWgc2aCwWLZIIzfE5Kvo0gfHgtqeRhrYWCMZaj/irKKs39h2B070oNQOIrA==
+detox@^20.27.5:
+  version "20.27.5"
+  resolved "https://registry.yarnpkg.com/detox/-/detox-20.27.5.tgz#f67d1a0c9ddbb2b6edb838e1b32c63b486be66ea"
+  integrity sha512-JBe3fONwaSxYubd/36SZh3c2MaYs+Cx7sOA4GJfh16QTyoB7XvvbGrSlQDTbag/f0j5RZt4judPtg5A3P1/Uhg==
   dependencies:
     ajv "^8.6.3"
     bunyan "^1.8.12"
@@ -15692,7 +15699,7 @@ detox@20.27.2:
     caf "^15.0.1"
     chalk "^4.0.0"
     child-process-promise "^2.2.0"
-    detox-copilot "^0.0.9"
+    detox-copilot "^0.0.23"
     execa "^5.1.1"
     find-up "^5.0.0"
     fs-extra "^11.0.0"
@@ -17100,41 +17107,28 @@ ethereum-ens-network-map@^1.0.0:
   resolved "https://registry.yarnpkg.com/ethereum-ens-network-map/-/ethereum-ens-network-map-1.0.2.tgz#4e27bad18dae7bd95d84edbcac2c9e739fc959b9"
   integrity sha512-5qwJ5n3YhjSpE6O/WEBXCAb2nagUgyagJ6C0lGUBWC4LjKp/rRzD+pwtDJ6KCiITFEAoX4eIrWOjRy0Sylq5Hg==
 
-ethereumjs-abi@0.6.6:
-  version "0.6.6"
-  resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.6.tgz#f8ba3413a98478173f5a00f7f1316819db1d09ec"
-  integrity sha512-w8KubDsA/+OAuqtIR9RGsMcoZ5nhM8vxwjJAJvEIY+clhxA3BHoLG3+ClYQaQhD0n3mlDt3U5rBrmSVJvI3c8A==
-  dependencies:
-    bn.js "^4.10.0"
-    ethereumjs-util "^5.0.0"
-
-ethereumjs-util@6.1.0:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-6.1.0.tgz#e9c51e5549e8ebd757a339cc00f5380507e799c8"
-  integrity sha512-URESKMFbDeJxnAxPppnk2fN6Y3BIatn9fwn76Lm8bQlt+s52TpG8dN9M66MLPuRAiAOIqL3dfwqWJf0sd0fL0Q==
+ethereumjs-abi@^0.6.8:
+  version "0.6.8"
+  resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.8.tgz#71bc152db099f70e62f108b7cdfca1b362c6fcae"
+  integrity sha512-Tx0r/iXI6r+lRsdvkFDlut0N08jWMnKRZ6Gkq+Nmw75lZe4e6o3EkSnkaBP5NF6+m5PTGAr9JP43N3LyeoglsA==
   dependencies:
-    bn.js "^4.11.0"
-    create-hash "^1.1.2"
-    ethjs-util "0.1.6"
-    keccak "^1.0.2"
-    rlp "^2.0.0"
-    safe-buffer "^5.1.1"
-    secp256k1 "^3.0.1"
+    bn.js "^4.11.8"
+    ethereumjs-util "^6.0.0"
 
-ethereumjs-util@^5.0.0:
-  version "5.2.1"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz#a833f0e5fca7e5b361384dc76301a721f537bf65"
-  integrity sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==
+ethereumjs-util@^6.0.0:
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz#fcb4e4dd5ceacb9d2305426ab1a5cd93e3163b69"
+  integrity sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==
   dependencies:
+    "@types/bn.js" "^4.11.3"
     bn.js "^4.11.0"
     create-hash "^1.1.2"
     elliptic "^6.5.2"
     ethereum-cryptography "^0.1.3"
-    ethjs-util "^0.1.3"
-    rlp "^2.0.0"
-    safe-buffer "^5.1.1"
+    ethjs-util "0.1.6"
+    rlp "^2.2.3"
 
-ethereumjs-util@^7.0.10, ethereumjs-util@^7.0.8, ethereumjs-util@^7.1.2:
+ethereumjs-util@^7.0.10, ethereumjs-util@^7.0.8, ethereumjs-util@^7.1.2, ethereumjs-util@^7.1.5:
   version "7.1.5"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.5.tgz#9ecf04861e4fbbeed7465ece5f23317ad1129181"
   integrity sha512-SDl5kKrQAudFBUe5OJM9Ac6WmMyYmXX/6sTmLZ3ffG2eY6ZIGBes3pEDxNN6V72WyOw4CPD5RomKdsa8DAAwLg==
@@ -17281,7 +17275,7 @@ ethjs-util@0.1.3:
     is-hex-prefixed "1.0.0"
     strip-hex-prefix "1.0.0"
 
-ethjs-util@0.1.6, ethjs-util@^0.1.3, ethjs-util@^0.1.6:
+ethjs-util@0.1.6, ethjs-util@^0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/ethjs-util/-/ethjs-util-0.1.6.tgz#f308b62f185f9fe6237132fb2a9818866a5cd536"
   integrity sha512-CUnVOQq7gSpDHZVVrQW8ExxUETWrnrvXYvYz55wOU8Uj4VCgw56XC2B/fVqQN+f7gmrnRHSLVnFAwsCuNwji8w==
@@ -21095,16 +21089,6 @@ keccak@3.0.2, keccak@^3.0.0:
     node-gyp-build "^4.2.0"
     readable-stream "^3.6.0"
 
-keccak@^1.0.2:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/keccak/-/keccak-1.4.0.tgz#572f8a6dbee8e7b3aa421550f9e6408ca2186f80"
-  integrity sha512-eZVaCpblK5formjPjeTBik7TAg+pqnDrMHIffSvi9Lh7PQgM1+hSzakUeZFCk9DVVG0dacZJuaz2ntwlzZUIBw==
-  dependencies:
-    bindings "^1.2.1"
-    inherits "^2.0.3"
-    nan "^2.2.1"
-    safe-buffer "^5.1.0"
-
 keygrip@~1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/keygrip/-/keygrip-1.1.0.tgz#871b1681d5e159c62a445b0c74b615e0917e7226"
@@ -22784,7 +22768,7 @@ mz@^2.7.0:
     object-assign "^4.0.1"
     thenify-all "^1.0.0"
 
-nan@^2.14.0, nan@^2.2.1:
+nan@^2.14.0:
   version "2.20.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.20.0.tgz#08c5ea813dd54ed16e5bd6505bf42af4f7838ca3"
   integrity sha512-bk3gXBZDGILuuo/6sKtr0DQmSThYHLtNCdSdXk9YkxD/jK6X2vmCyyXBBxyqZ4XcnzTyYEAThfX3DCEnLf6igw==
@@ -26492,7 +26476,7 @@ ripemd160@^2.0.0, ripemd160@^2.0.1, ripemd160@^2.0.2:
     hash-base "^3.0.0"
     inherits "^2.0.1"
 
-rlp@^2.0.0, rlp@^2.2.4, rlp@^2.2.6:
+rlp@^2.2.3, rlp@^2.2.4, rlp@^2.2.6:
   version "2.2.7"
   resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.7.tgz#33f31c4afac81124ac4b283e2bd4d9720b30beaf"
   integrity sha512-d5gdPmgQ0Z+AklL2NVXr/IoSjNZFfTVvQWzL/AM2AOcSzYP2xjlb0AC8YyCLc41MSNf6P6QVtjgPdmVtzb+4lQ==
@@ -26683,7 +26667,7 @@ scrypt-js@3.0.1, scrypt-js@^3.0.0, scrypt-js@^3.0.1:
   resolved "https://registry.yarnpkg.com/scrypt-js/-/scrypt-js-3.0.1.tgz#d314a57c2aef69d1ad98a138a21fe9eafa9ee312"
   integrity sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA==
 
-secp256k1@3.8.1, secp256k1@^3.0.1:
+secp256k1@3.8.1:
   version "3.8.1"
   resolved "https://registry.yarnpkg.com/secp256k1/-/secp256k1-3.8.1.tgz#b62a62a882d6b16f9b51fe599c6b3a861e36c59f"
   integrity sha512-tArjQw2P0RTdY7QmkNehgp6TVvQXq6ulIhxv8gaH6YubKG/wxxAoNKcbuXjDhybbc+b2Ihc7e0xxiGN744UIiQ==