diff --git a/package.json b/package.json
index 85a208f..beb7894 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   "dependencies": {
     "@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers@^0.3.0-beta.10",
     "@nomiclabs/hardhat-waffle": "^2.0.1",
-    "@openzeppelin/contracts": "4.3.3",
+    "@openzeppelin/contracts": "4.7.3",
     "@openzeppelin/contracts-ethereum-package": "^2.5.0",
     "@openzeppelin/hardhat-upgrades": "^1.9.0",
     "@openzeppelin/upgrades": "^2.5.3",
diff --git a/yarn.lock b/yarn.lock
index aae748c..f32bdba 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -549,10 +549,10 @@
   resolved "https://registry.yarnpkg.com/@openzeppelin/contracts-ethereum-package/-/contracts-ethereum-package-2.5.0.tgz#cfb4b91f8132edde7e04bcd032575d4c6b544f4a"
   integrity sha512-14CijdTyy4Y/3D3UUeFC2oW12nt1Yq1M8gFOtkuODEvSYPe3YSAKnKyhUeGf0UDNCZzwfGr15KdiFK6AoJjoSQ==
 
-"@openzeppelin/contracts@4.3.3":
-  version "4.3.3"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.3.3.tgz#ff6ee919fc2a1abaf72b22814bfb72ed129ec137"
-  integrity sha512-tDBopO1c98Yk7Cv/PZlHqrvtVjlgK5R4J6jxLwoO7qxK4xqOiZG+zSkIvGFpPZ0ikc3QOED3plgdqjgNTnBc7g==
+"@openzeppelin/contracts@4.7.3":
+  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@^1.9.0":
   version "1.10.0"