diff --git a/package-lock.json b/package-lock.json
index 054d535..2522f94 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -190,13 +190,18 @@
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-      "resolved": "https://registry.npmjs.org/base-x/-/base-x-3.0.5.tgz",
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+      "resolved": "https://registry.npmjs.org/base-x/-/base-x-3.0.9.tgz",
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+    "base64-js": {
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+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
+      "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA=="
+    },
     "bcrypt-pbkdf": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
@@ -284,20 +289,28 @@
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-      "resolved": "https://registry.npmjs.org/bs58/-/bs58-4.0.1.tgz",
-      "integrity": "sha1-vhYedsNU9veIrkBx9j806MTwpCo=",
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+    "buffer": {
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+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz",
+      "integrity": "sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==",
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+        "ieee754": "^1.1.13"
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+          "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.2.1.tgz",
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+        }
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       "resolved": "https://registry.npmjs.org/buffer-xor/-/buffer-xor-1.0.3.tgz",
@@ -1827,12 +1840,22 @@
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+    "multibase": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/multibase/-/multibase-0.7.0.tgz",
+      "integrity": "sha512-TW8q03O0f6PNFTQDvh3xxH03c8CjGaaYrjkl9UQPG6rz53TQzzxJVCIWVjzcbN/Q5Y53Zd0IBQBMVktVgNx4Fg==",
+      "requires": {
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+        "buffer": "^5.5.0"
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-      "version": "0.4.14",
-      "resolved": "https://registry.npmjs.org/multihashes/-/multihashes-0.4.14.tgz",
-      "integrity": "sha512-V/g/EIN6nALXfS/xHUAgtfPP3mn3sPIF/i9beuGKf25QXS2QZYCpeVJbDPEannkz32B2fihzCe2D/KMrbcmefg==",
+      "version": "0.4.21",
+      "resolved": "https://registry.npmjs.org/multihashes/-/multihashes-0.4.21.tgz",
+      "integrity": "sha512-uVSvmeCWf36pU2nB4/1kzYZjsXD9vofZKpgudqkceYY5g2aZZXJ5r9lxuzoRLl1OAp28XljXsEJ/X/85ZsKmKw==",
       "requires": {
-        "bs58": "^4.0.1",
+        "buffer": "^5.5.0",
+        "multibase": "^0.7.0",
         "varint": "^5.0.0"
       }
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@@ -2708,9 +2731,9 @@
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-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/varint/-/varint-5.0.0.tgz",
-      "integrity": "sha1-2Ca4n3SQcy+rwMDtaT7Uddyynr8="
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/varint/-/varint-5.0.2.tgz",
+      "integrity": "sha512-lKxKYG6H03yCZUpAGOPOsMcGxd1RHCu1iKvEHYDPmTyq2HueGhD73ssNBqqQWfvYs04G9iUFRvmAVLW20Jw6ow=="
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diff --git a/package.json b/package.json
index b74736f..633d81d 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "ethereumjs-util": "^5.2.0",
     "i18n": "^0.8.3",
     "moment": "^2.22.2",
-    "multihashes": "^0.4.5",
+    "multihashes": "^0.4.21",
     "node-async-loop": "^1.2.2",
     "node-cache": "^4.1.1",
     "node-schedule": "^1.2.3",