diff --git a/smart-contracts/package.json b/smart-contracts/package.json
index 285266e..9bf3590 100644
--- a/smart-contracts/package.json
+++ b/smart-contracts/package.json
@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "@openzeppelin/contracts": "4.4.2",
+    "@openzeppelin/contracts": "4.9.1",
     "@rari-capital/solmate": "^6.2.0",
     "@uniswap/v3-periphery": "^1.4.0",
     "eth-sig-util": "^3.0.1",
diff --git a/smart-contracts/yarn.lock b/smart-contracts/yarn.lock
index faca464..9514f28 100644
--- a/smart-contracts/yarn.lock
+++ b/smart-contracts/yarn.lock
@@ -1160,10 +1160,10 @@
   resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-3.4.1-solc-0.7-2.tgz#371c67ebffe50f551c3146a9eec5fe6ffe862e92"
   integrity sha512-tAG9LWg8+M2CMu7hIsqHPaTyG4uDzjr6mhvH96LvOpLZZj6tgzTluBt+LsCf1/QaYrlis6pITvpIaIhE+iZB+Q==
 
-"@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@4.9.1":
+  version "4.9.1"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.9.1.tgz#afa804d2c68398704b0175acc94d91a54f203645"
+  integrity sha512-aLDTLu/If1qYIFW5g4ZibuQaUsFGWQPBq1mZKp/txaebUnGHDmmiBhRLY1tDNedN0m+fJtKZ1zAODS9Yk+V6uA==
 
 "@rari-capital/solmate@^6.2.0":
   version "6.2.0"