diff --git a/package.json b/package.json
index 5954c27..0a2a764 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "dependencies": {
         "@codechecks/client": "^0.1.10",
         "@openzeppelin/cli": "^2.6.0",
-        "@openzeppelin/contracts": "^2.4.0",
+        "@openzeppelin/contracts": "^4.7.2",
         "@openzeppelin/contracts-ethereum-package": "^2.4.0",
         "@openzeppelin/test-helpers": "^0.5.4",
         "@openzeppelin/upgrades": "^2.6.0",
diff --git a/yarn.lock b/yarn.lock
index 35e5bed..6255441 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -545,10 +545,10 @@
   resolved "https://registry.yarnpkg.com/@openzeppelin/contracts-ethereum-package/-/contracts-ethereum-package-2.4.0.tgz#cd98612022cadb8710c26901bc564240a19a9b40"
   integrity sha512-GC1aOgTnuNnlhdYOCKFizLCQRgYlbImWi+aJ9Lw4Yw4BSLHzfPg+XV0tgn9l+KnFAzgoUEg2aD2wmaHZBjEnSw==
 
-"@openzeppelin/contracts@^2.4.0":
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-2.5.0.tgz#e327a98ba1d26b7756ff62885a0aa0967a375449"
-  integrity sha512-t3jm8FrhL9tkkJTofkznTqo/XXdHi21w5yXwalEnaMOp22ZwZ0f/mmKdlgMMLPFa6bSVHbY88mKESwJT/7m5Lg==
+"@openzeppelin/contracts@^4.7.2":
+  version "4.7.2"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.7.2.tgz#7587416fe2d35abf574193515b8971bfe9f64bc7"
+  integrity sha512-4n/JL9izql8303mPqPdubuna/DWEMbmOzWYUWyCPhjhiEr2w3nQrjE7vZz1fBF+wzzP6dZbIcsgqACk53c9FGA==
 
 "@openzeppelin/fuzzy-solidity-import-parser@^0.1.2":
   version "0.1.2"