diff --git a/package.json b/package.json
index 430a04cc..cee6c619 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
         "@nomiclabs/hardhat-ethers": "^2.0.6",
         "@nomiclabs/hardhat-etherscan": "^3.1.0",
         "@nomiclabs/hardhat-waffle": "^2.0.3",
-        "@openzeppelin/contracts": "4.9.0",
+        "@openzeppelin/contracts": "4.9.1",
         "@typechain/ethers-v5": "^7.0.1",
         "@typechain/hardhat": "^7.0.0",
         "@types/mocha": "^10.0.0",
diff --git a/yarn.lock b/yarn.lock
index ab3f0bf3..95ce872a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -762,10 +762,10 @@
   resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-waffle/-/hardhat-waffle-2.0.6.tgz#d11cb063a5f61a77806053e54009c40ddee49a54"
   integrity sha512-+Wz0hwmJGSI17B+BhU/qFRZ1l6/xMW82QGXE/Gi+WTmwgJrQefuBs1lIf7hzQ1hLk6hpkvb/zwcNkpVKRYTQYg==
 
-"@openzeppelin/contracts@4.9.0":
-  version "4.9.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.9.0.tgz#683f33b6598970051bc5f0806fd8660da9e018dd"
-  integrity sha512-DUP74AFGKlic2sQb/CmgrN2aUPMFGxRrmCTUxLHsiU2RzwWqVuMPZBxiAyvlff6Pea77uylAX6B5x9W6evEbhA==
+"@openzeppelin/contracts@4.9.1":
+  version "4.9.1"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.9.1.tgz#afa804d2c68398704b0175acc94d91a54f203645"
+  integrity sha512-aLDTLu/If1qYIFW5g4ZibuQaUsFGWQPBq1mZKp/txaebUnGHDmmiBhRLY1tDNedN0m+fJtKZ1zAODS9Yk+V6uA==
 
 "@resolver-engine/core@^0.3.3":
   version "0.3.3"