diff --git a/yarn.lock b/yarn.lock
index f6204cf..cbfde4f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -966,9 +966,9 @@
   integrity sha512-t3jm8FrhL9tkkJTofkznTqo/XXdHi21w5yXwalEnaMOp22ZwZ0f/mmKdlgMMLPFa6bSVHbY88mKESwJT/7m5Lg==
 
 "@openzeppelin/contracts@^4.5.0":
-  version "4.5.0"
-  resolved "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.5.0.tgz"
-  integrity sha512-fdkzKPYMjrRiPK6K4y64e6GzULR7R7RwxSigHS8DDp7aWDeoReqsQI+cxHV1UuhAqX69L1lAaWDxenfP+xiqzA==
+  version "4.7.3"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.7.3.tgz#939534757a81f8d69cc854c7692805684ff3111e"
+  integrity sha512-dGRS0agJzu8ybo44pCIf3xBaPQN/65AIXNgK8+4gzKd5kbvlqyxryUYVLJv7fK98Seyd2hDZzVEHSWAh0Bt1Yw==
 
 "@openzeppelin/hardhat-upgrades@^1.17.0":
   version "1.17.0"