diff --git a/package.json b/package.json
index 5792609..aa0d13b 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "coverage": "truffle run coverage"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "^4.2.0"
+    "@openzeppelin/contracts": "^4.7.3"
   },
   "devDependencies": {
     "solidity-coverage": "^0.7.16",
diff --git a/yarn.lock b/yarn.lock
index b6a099e..bcd5263 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1393,10 +1393,10 @@
     find-up "^4.1.0"
     fs-extra "^8.1.0"
 
-"@openzeppelin/contracts@^4.2.0":
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.2.0.tgz#260d921d99356e48013d9d760caaa6cea35dc642"
-  integrity sha512-LD4NnkKpHHSMo5z9MvFsG4g1xxZUDqV3A3Futu3nvyfs4wPwXxqOgMaxOoa2PeyGL2VNeSlbxT54enbQzGcgJQ==
+"@openzeppelin/contracts@^4.7.3":
+  version "4.7.3"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.7.3.tgz#939534757a81f8d69cc854c7692805684ff3111e"
+  integrity sha512-dGRS0agJzu8ybo44pCIf3xBaPQN/65AIXNgK8+4gzKd5kbvlqyxryUYVLJv7fK98Seyd2hDZzVEHSWAh0Bt1Yw==
 
 "@openzeppelin/test-helpers@^0.5.12":
   version "0.5.12"