diff --git a/package-lock.json b/package-lock.json
index 832652f..3366fe5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -475,9 +475,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-2.5.0.tgz",
-      "integrity": "sha512-t3jm8FrhL9tkkJTofkznTqo/XXdHi21w5yXwalEnaMOp22ZwZ0f/mmKdlgMMLPFa6bSVHbY88mKESwJT/7m5Lg==",
+      "version": "4.7.2",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.2.tgz",
+      "integrity": "sha512-4n/JL9izql8303mPqPdubuna/DWEMbmOzWYUWyCPhjhiEr2w3nQrjE7vZz1fBF+wzzP6dZbIcsgqACk53c9FGA==",
       "dev": true
     },
     "@openzeppelin/fuzzy-solidity-import-parser": {
diff --git a/package.json b/package.json
index 640101b..72e1e34 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
   ],
   "devDependencies": {
     "@openzeppelin/cli": "^2.7.2",
-    "@openzeppelin/contracts": "^2.5.0",
+    "@openzeppelin/contracts": "^4.7.2",
     "@openzeppelin/test-environment": "^0.1.3",
     "@openzeppelin/test-helpers": "^0.5.5",
     "bn.js": "^5.1.1",