diff --git a/examples/EthSwapNGo/swapPool/package-lock.json b/examples/EthSwapNGo/swapPool/package-lock.json
index 1a38f44c1c..70e5d699e0 100644
--- a/examples/EthSwapNGo/swapPool/package-lock.json
+++ b/examples/EthSwapNGo/swapPool/package-lock.json
@@ -16,7 +16,7 @@
       },
       "devDependencies": {
         "@improbable-eng/grpc-web-node-http-transport": "^0.15.0",
-        "@openzeppelin/contracts": "3.2.0",
+        "@openzeppelin/contracts": "4.8.3",
         "@typechain/ethers-v5": "^7.0.1",
         "@types/jest": "^27.0.2",
         "@types/long": "^4.0.1",
@@ -4695,9 +4695,9 @@
       }
     },
     "node_modules/@openzeppelin/contracts": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.2.0.tgz",
-      "integrity": "sha512-bUOmkSoPkjnUyMiKo6RYnb0VHBk5D9KKDAgNLzF41aqAM3TeE0yGdFF5dVRcV60pZdJLlyFT/jjXIZCWyyEzAQ==",
+      "version": "4.8.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.8.3.tgz",
+      "integrity": "sha512-bQHV8R9Me8IaJoJ2vPG4rXcL7seB7YVuskr4f+f5RyOStSZetwzkWtoqDMl5erkBJy0lDRUnIR2WIkPiC0GJlg==",
       "dev": true
     },
     "node_modules/@protobufjs/aspromise": {
@@ -35859,9 +35859,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.2.0.tgz",
-      "integrity": "sha512-bUOmkSoPkjnUyMiKo6RYnb0VHBk5D9KKDAgNLzF41aqAM3TeE0yGdFF5dVRcV60pZdJLlyFT/jjXIZCWyyEzAQ==",
+      "version": "4.8.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.8.3.tgz",
+      "integrity": "sha512-bQHV8R9Me8IaJoJ2vPG4rXcL7seB7YVuskr4f+f5RyOStSZetwzkWtoqDMl5erkBJy0lDRUnIR2WIkPiC0GJlg==",
       "dev": true
     },
     "@protobufjs/aspromise": {
diff --git a/examples/EthSwapNGo/swapPool/package.json b/examples/EthSwapNGo/swapPool/package.json
index 9c6aea7e1f..0874eadd28 100644
--- a/examples/EthSwapNGo/swapPool/package.json
+++ b/examples/EthSwapNGo/swapPool/package.json
@@ -13,7 +13,7 @@
   "license": "ISC",
   "devDependencies": {
     "@improbable-eng/grpc-web-node-http-transport": "^0.15.0",
-    "@openzeppelin/contracts": "3.2.0",
+    "@openzeppelin/contracts": "4.8.3",
     "@typechain/ethers-v5": "^7.0.1",
     "@types/jest": "^27.0.2",
     "@types/long": "^4.0.1",