diff --git a/package.json b/package.json
index 952cbe9..d9c4a22 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   "dependencies": {
     "@erasure/abis": "^1.3.25",
     "@erasure/crypto-ipfs": "^1.2.5",
-    "@openzeppelin/contracts": "^2.4.0",
+    "@openzeppelin/contracts": "^4.7.2",
     "dotenv": "^8.0.0",
     "etherlime": "^2.2.6",
     "etherlime-lib": "^1.1.7",
diff --git a/yarn.lock b/yarn.lock
index 550d3b6..e8ced49 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -306,10 +306,10 @@
   resolved "https://registry.yarnpkg.com/@ledgerhq/logs/-/logs-4.68.2.tgz#3ba74680927807f83d9f0bfd7da45f192d2c0893"
   integrity sha512-iFwGIzPmAMDvxVLtTvBUo0DCWz8vVaD0C4IsprNaXbxu+AsDmlc9kO9CKLB5YFEZblKNNKqJMJDfKvg5brIpTw==
 
-"@openzeppelin/contracts@^2.4.0":
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-2.4.0.tgz#7270f79ed1463370fe6e664d36a779aa4d3ee896"
-  integrity sha512-xeKP59REgow5TPBJh3S9BRIm7DDG+Rz3Nt4ANWGUkjk4305DHpyUD5CyMJ6nd2JMmZuFyx4mjvvlCtSJLRnN6w==
+"@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==
 
 "@redux-saga/core@^1.0.0":
   version "1.0.3"