diff --git a/package.json b/package.json
index 61937ee..5b54a96 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "dependencies": {
     "@0x/subproviders": "^6.6.2",
     "@metamask/eth-sig-util": "^4.0.0",
-    "@openzeppelin/contracts": "4.4.0",
+    "@openzeppelin/contracts": "4.7.3",
     "eth-gas-reporter": "^0.2.17",
     "ethereum-waffle": "^3.0.0",
     "opensea-js": "^2.0.1",
diff --git a/yarn.lock b/yarn.lock
index 9a28dca..4181088 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1799,10 +1799,10 @@
     "@nodelib/fs.scandir" "2.1.4"
     fastq "^1.6.0"
 
-"@openzeppelin/contracts@4.4.0":
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.4.0.tgz#4a1df71f736c31230bbbd634dfb006a756b51e6b"
-  integrity sha512-dlKiZmDvJnGRLHojrDoFZJmsQVeltVeoiRN7RK+cf2FmkhASDEblE0RiaYdxPNsUZa6mRG8393b9bfyp+V5IAw==
+"@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==
 
 "@protobufjs/aspromise@^1.1.1", "@protobufjs/aspromise@^1.1.2":
   version "1.1.2"