diff --git a/package.json b/package.json
index 0b8a03edd..c3f166f83 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "typescript": "^4.2.3"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "3.4.1",
+    "@openzeppelin/contracts": "4.8.3",
     "@openzeppelin/contracts-upgradeable": "^3.4.1",
     "@uniswap/v2-core": "^1.0.1",
     "@uniswap/v2-periphery": "https://github.com/hoytech/uniswap-v2-periphery.git#e8c36e5ad5178341cd67f8b0fdb983073428fb6b",
diff --git a/yarn.lock b/yarn.lock
index 64ed7f186..58a7eb7bf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2035,16 +2035,16 @@
   resolved "https://registry.npmjs.org/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-3.4.1.tgz"
   integrity sha512-wBGlUzEkOxcj/ghtcF2yKc8ZYh+PTUtm1mK38zoENulJ6aplij7eH8quo3lMugfzPJy+V6V5qI8QhdQmCn7hkQ==
 
-"@openzeppelin/contracts@3.4.1":
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-3.4.1.tgz#03c891fec7f93be0ae44ed74e57a122a38732ce7"
-  integrity sha512-cUriqMauq1ylzP2TxePNdPqkwI7Le3Annh4K9rrpvKfSBB/bdW+Iu1ihBaTIABTAAJ85LmKL5SSPPL9ry8d1gQ==
-
 "@openzeppelin/contracts@3.4.1-solc-0.7-2":
   version "3.4.1-solc-0.7-2"
   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@4.8.3":
+  version "4.8.3"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.8.3.tgz#cbef3146bfc570849405f59cba18235da95a252a"
+  integrity sha512-bQHV8R9Me8IaJoJ2vPG4rXcL7seB7YVuskr4f+f5RyOStSZetwzkWtoqDMl5erkBJy0lDRUnIR2WIkPiC0GJlg==
+
 "@openzeppelin/hardhat-upgrades@^1.6.0":
   version "1.6.0"
   resolved "https://registry.npmjs.org/@openzeppelin/hardhat-upgrades/-/hardhat-upgrades-1.6.0.tgz"