diff --git a/contracts/basic-bandwidth-generation/package-lock.json b/contracts/basic-bandwidth-generation/package-lock.json
index 934096cf6e..c954a7d488 100644
--- a/contracts/basic-bandwidth-generation/package-lock.json
+++ b/contracts/basic-bandwidth-generation/package-lock.json
@@ -7,7 +7,7 @@
       "dependencies": {
         "@nomiclabs/hardhat-truffle5": "^2.0.5",
         "@nomiclabs/hardhat-web3": "^2.0.0",
-        "@openzeppelin/contracts": "4.5.0",
+        "@openzeppelin/contracts": "4.7.3",
         "@openzeppelin/test-helpers": "^0.5.15",
         "dotenv": "^16.0.0",
         "file-system": "^2.2.2",
@@ -1920,9 +1920,9 @@
       }
     },
     "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": "4.7.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.3.tgz",
+      "integrity": "sha512-dGRS0agJzu8ybo44pCIf3xBaPQN/65AIXNgK8+4gzKd5kbvlqyxryUYVLJv7fK98Seyd2hDZzVEHSWAh0Bt1Yw=="
     },
     "node_modules/@openzeppelin/test-helpers": {
       "version": "0.5.15",
@@ -21190,9 +21190,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.5.0.tgz",
-      "integrity": "sha512-fdkzKPYMjrRiPK6K4y64e6GzULR7R7RwxSigHS8DDp7aWDeoReqsQI+cxHV1UuhAqX69L1lAaWDxenfP+xiqzA=="
+      "version": "4.7.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.3.tgz",
+      "integrity": "sha512-dGRS0agJzu8ybo44pCIf3xBaPQN/65AIXNgK8+4gzKd5kbvlqyxryUYVLJv7fK98Seyd2hDZzVEHSWAh0Bt1Yw=="
     },
     "@openzeppelin/test-helpers": {
       "version": "0.5.15",
diff --git a/contracts/basic-bandwidth-generation/package.json b/contracts/basic-bandwidth-generation/package.json
index 020625ad2d..0fee523d6c 100644
--- a/contracts/basic-bandwidth-generation/package.json
+++ b/contracts/basic-bandwidth-generation/package.json
@@ -12,7 +12,7 @@
   "dependencies": {
     "@nomiclabs/hardhat-truffle5": "^2.0.5",
     "@nomiclabs/hardhat-web3": "^2.0.0",
-    "@openzeppelin/contracts": "4.5.0",
+    "@openzeppelin/contracts": "4.7.3",
     "@openzeppelin/test-helpers": "^0.5.15",
     "dotenv": "^16.0.0",
     "file-system": "^2.2.2",