diff --git a/module1/blockchain-handler/package-lock.json b/module1/blockchain-handler/package-lock.json
index 39a9b31..b9b07ea 100644
--- a/module1/blockchain-handler/package-lock.json
+++ b/module1/blockchain-handler/package-lock.json
@@ -2060,9 +2060,9 @@
       }
     },
     "node_modules/@openzeppelin/contracts": {
-      "version": "4.9.2",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.2.tgz",
-      "integrity": "sha512-mO+y6JaqXjWeMh9glYVzVu8HYPGknAAnWyxTRhGeckOruyXQMNnlcW6w/Dx9ftLeIQk6N+ZJFuVmTwF7lEIFrg=="
+      "version": "4.9.6",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.6.tgz",
+      "integrity": "sha512-xSmezSupL+y9VkHZJGDoCBpmnB2ogM13ccaYDWqJTfS3dbuHkgjuwDFUmaFauBCboQMGB/S5UqUl2y54X99BmA=="
     },
     "node_modules/@scure/base": {
       "version": "1.1.1",
@@ -9181,9 +9181,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "4.9.2",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.2.tgz",
-      "integrity": "sha512-mO+y6JaqXjWeMh9glYVzVu8HYPGknAAnWyxTRhGeckOruyXQMNnlcW6w/Dx9ftLeIQk6N+ZJFuVmTwF7lEIFrg=="
+      "version": "4.9.6",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.6.tgz",
+      "integrity": "sha512-xSmezSupL+y9VkHZJGDoCBpmnB2ogM13ccaYDWqJTfS3dbuHkgjuwDFUmaFauBCboQMGB/S5UqUl2y54X99BmA=="
     },
     "@scure/base": {
       "version": "1.1.1",