diff --git a/package-lock.json b/package-lock.json
index ba9116f..92e8747 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
          "version": "1.0.0",
          "dependencies": {
             "@chainsafe/truffle-plugin-abigen": "^0.0.2",
-            "@openzeppelin/contracts": "^3.2.2-solc-0.7",
+            "@openzeppelin/contracts": "^4.7.2",
             "@truffle/contract": "^4.4.2",
             "@truffle/hdwallet-provider": "=1.2.2",
             "moonbeam-truffle-plugin": ">=1.4.0",
@@ -1587,9 +1587,9 @@
          "optional": true
       },
       "node_modules/@openzeppelin/contracts": {
-         "version": "3.4.2",
-         "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.4.2.tgz",
-         "integrity": "sha512-z0zMCjyhhp4y7XKAcDAi3Vgms4T2PstwBdahiO0+9NaGICQKjynK3wduSRplTgk4LXmoO1yfDGO5RbjKYxtuxA=="
+         "version": "4.7.2",
+         "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.2.tgz",
+         "integrity": "sha512-4n/JL9izql8303mPqPdubuna/DWEMbmOzWYUWyCPhjhiEr2w3nQrjE7vZz1fBF+wzzP6dZbIcsgqACk53c9FGA=="
       },
       "node_modules/@protobufjs/aspromise": {
          "version": "1.1.2",
@@ -25078,9 +25078,9 @@
          "optional": true
       },
       "@openzeppelin/contracts": {
-         "version": "3.4.2",
-         "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.4.2.tgz",
-         "integrity": "sha512-z0zMCjyhhp4y7XKAcDAi3Vgms4T2PstwBdahiO0+9NaGICQKjynK3wduSRplTgk4LXmoO1yfDGO5RbjKYxtuxA=="
+         "version": "4.7.2",
+         "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.2.tgz",
+         "integrity": "sha512-4n/JL9izql8303mPqPdubuna/DWEMbmOzWYUWyCPhjhiEr2w3nQrjE7vZz1fBF+wzzP6dZbIcsgqACk53c9FGA=="
       },
       "@protobufjs/aspromise": {
          "version": "1.1.2",
diff --git a/package.json b/package.json
index 43b164b..8a4ea68 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
    "version": "1.0.0",
    "dependencies": {
       "@chainsafe/truffle-plugin-abigen": "^0.0.2",
-      "@openzeppelin/contracts": "^3.2.2-solc-0.7",
+      "@openzeppelin/contracts": "^4.7.2",
       "@truffle/contract": "^4.4.2",
       "@truffle/hdwallet-provider": "=1.2.2",
       "moonbeam-truffle-plugin": ">=1.4.0",