diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 7049cc29..a51309c3
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "@nomiclabs/hardhat-etherscan": "^3.1.6",
     "@nomiclabs/hardhat-waffle": "^2.0.2",
     "@nomiclabs/hardhat-web3": "^2.0.0",
-    "@openzeppelin/contracts": "^4.4.2",
+    "@openzeppelin/contracts": "^4.9.3",
     "@openzeppelin/contracts-upgradeable": "^4.5.2",
     "@typechain/ethers-v5": "^9.0.0",
     "@typechain/hardhat": "^4.0.0",
diff --git a/yarn.lock b/yarn.lock
index f244b3f8..97f275da 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2302,15 +2302,10 @@
   resolved "https://registry.yarnpkg.com/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-4.5.2.tgz#90d9e47bacfd8693bfad0ac8a394645575528d05"
   integrity sha512-xgWZYaPlrEOQo3cBj97Ufiuv79SPd8Brh4GcFYhPgb6WvAq4ppz8dWKL6h+jLAK01rUqMRp/TS9AdXgAeNvCLA==
 
-"@openzeppelin/contracts@^4.4.2":
-  version "4.4.2"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.4.2.tgz#4e889c9c66e736f7de189a53f8ba5b8d789425c2"
-  integrity sha512-NyJV7sJgoGYqbtNUWgzzOGW4T6rR19FmX1IJgXGdapGPWsuMelGJn9h03nos0iqfforCbCB0iYIR0MtIuIFLLw==
-
-"@openzeppelin/contracts@^4.8.0":
-  version "4.8.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.8.0.tgz#6854c37df205dd2c056bdfa1b853f5d732109109"
-  integrity sha512-AGuwhRRL+NaKx73WKRNzeCxOCOCxpaqF+kp8TJ89QzAipSwZy/NoflkWaL9bywXFRhIzXt8j38sfF7KBKCPWLw==
+"@openzeppelin/contracts@^4.8.0", "@openzeppelin/contracts@^4.9.3":
+  version "4.9.3"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.9.3.tgz#00d7a8cf35a475b160b3f0293a6403c511099364"
+  integrity sha512-He3LieZ1pP2TNt5JbkPA4PNT9WC3gOTOlDcFGJW4Le4QKqwmiNJCRt44APfxMxvq7OugU/cqYuPcSBzOw38DAg==
 
 "@openzeppelin/upgrades@^2.8.0":
   version "2.8.0"