diff --git a/package-lock.json b/package-lock.json
index 262b04a..451b7cd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -120,9 +120,9 @@
       }
     },
     "@openzeppelin/contracts": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-3.0.2.tgz",
-      "integrity": "sha512-eK9F3jEbjQeRYLiqrHUrXCZBxE+7L4Ve5scYInsLezuasoFkrrEFlnDWD8gbN+6e5NgdgJP9fTWxjxWmaHh7dA=="
+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.4.2.tgz",
+      "integrity": "sha512-NyJV7sJgoGYqbtNUWgzzOGW4T6rR19FmX1IJgXGdapGPWsuMelGJn9h03nos0iqfforCbCB0iYIR0MtIuIFLLw=="
     },
     "@sindresorhus/is": {
       "version": "0.14.0",
diff --git a/package.json b/package.json
index f4a7222..081b20b 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "@openzeppelin/contracts": "^3.0.2",
+    "@openzeppelin/contracts": "^4.4.2",
     "web3": "^1.2.8"
   }
 }