diff --git a/package-lock.json b/package-lock.json
index 98cd1d3..94922de 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6277,18 +6277,33 @@
       }
     },
     "ethereumjs-util": {
-      "version": "5.2.1",
-      "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz",
-      "integrity": "sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==",
+      "version": "7.1.5",
+      "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-7.1.5.tgz",
+      "integrity": "sha512-SDl5kKrQAudFBUe5OJM9Ac6WmMyYmXX/6sTmLZ3ffG2eY6ZIGBes3pEDxNN6V72WyOw4CPD5RomKdsa8DAAwLg==",
       "dev": true,
       "requires": {
-        "bn.js": "^4.11.0",
+        "@types/bn.js": "^5.1.0",
+        "bn.js": "^5.1.2",
         "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"
+        "rlp": "^2.2.4"
+      },
+      "dependencies": {
+        "@types/bn.js": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-5.2.0.tgz",
+          "integrity": "sha512-DLbJ1BPqxvQhIGbeu8VbUC1DiAiahHtAYvA0ZEAa4P31F7IaArc8z3C3BRQdWX4mtLQuABG4yzp76ZrS02Ui1Q==",
+          "dev": true,
+          "requires": {
+            "@types/node": "*"
+          }
+        },
+        "bn.js": {
+          "version": "5.2.3",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.3.tgz",
+          "integrity": "sha512-EAcmnPkxpntVL+DS7bO1zhcZNvCkxqtkd0ZY53h06GNQ3DEkkGZ/gKgmDv6DdZQGj9BgfSPKtJJ7Dp1GPP8f7w==",
+          "dev": true
+        }
       }
     },
     "ethereumjs-vm": {
@@ -14109,6 +14124,23 @@
             "json-rpc-engine": "^3.6.0",
             "pify": "^2.3.0",
             "tape": "^4.6.3"
+          },
+          "dependencies": {
+            "ethereumjs-util": {
+              "version": "5.2.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz",
+              "integrity": "sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==",
+              "dev": true,
+              "requires": {
+                "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"
+              }
+            }
           }
         },
         "json-rpc-engine": {
@@ -14200,6 +14232,23 @@
             "ws": "^5.1.1",
             "xhr": "^2.2.0",
             "xtend": "^4.0.1"
+          },
+          "dependencies": {
+            "ethereumjs-util": {
+              "version": "5.2.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz",
+              "integrity": "sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==",
+              "dev": true,
+              "requires": {
+                "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"
+              }
+            }
           }
         },
         "ws": {
diff --git a/package.json b/package.json
index 4412e59..aef4c29 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "eslint-plugin-node": "^5.2.1",
     "eslint-plugin-promise": "^3.8.0",
     "eslint-plugin-standard": "^3.1.0",
-    "ethereumjs-util": "^5.2.0",
+    "ethereumjs-util": "^7.0.0",
     "ethjs-abi": "^0.2.1",
     "ganache-cli": "6.1.0",
     "openzeppelin-solidity": "^2.5.0",