diff --git a/package-lock.json b/package-lock.json
index 1ecbe3f..c86bd25 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "@nomiclabs/hardhat-etherscan": "^3.0.3",
         "@nomiclabs/hardhat-solhint": "^2.0.0",
-        "@openzeppelin/contracts": "^4.0.0",
+        "@openzeppelin/contracts": "^4.7.1",
         "@openzeppelin/contracts-upgradeable": "^4.5.2",
         "ethereum-waffle": "^3.4.4"
       },
@@ -3189,9 +3189,9 @@
       }
     },
     "node_modules/@openzeppelin/contracts": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.5.0.tgz",
-      "integrity": "sha512-fdkzKPYMjrRiPK6K4y64e6GzULR7R7RwxSigHS8DDp7aWDeoReqsQI+cxHV1UuhAqX69L1lAaWDxenfP+xiqzA=="
+      "version": "4.7.1",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.1.tgz",
+      "integrity": "sha512-UXmAjKARsXORHlHZu5GCD7ZbRKm6nU8UHnbuT/QJJa2JEOEcbvV/X8w/sUk62Sl9VZuuljM1akrZLyAtzUgsxw=="
     },
     "node_modules/@openzeppelin/contracts-upgradeable": {
       "version": "4.5.2",
@@ -38029,9 +38029,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.5.0.tgz",
-      "integrity": "sha512-fdkzKPYMjrRiPK6K4y64e6GzULR7R7RwxSigHS8DDp7aWDeoReqsQI+cxHV1UuhAqX69L1lAaWDxenfP+xiqzA=="
+      "version": "4.7.1",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.1.tgz",
+      "integrity": "sha512-UXmAjKARsXORHlHZu5GCD7ZbRKm6nU8UHnbuT/QJJa2JEOEcbvV/X8w/sUk62Sl9VZuuljM1akrZLyAtzUgsxw=="
     },
     "@openzeppelin/contracts-upgradeable": {
       "version": "4.5.2",
diff --git a/package.json b/package.json
index 1b682fb..5f018f5 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "@nomiclabs/hardhat-etherscan": "^3.0.3",
     "@nomiclabs/hardhat-solhint": "^2.0.0",
-    "@openzeppelin/contracts": "^4.0.0",
+    "@openzeppelin/contracts": "^4.7.1",
     "@openzeppelin/contracts-upgradeable": "^4.5.2",
     "ethereum-waffle": "^3.4.4"
   },