diff --git a/package-lock.json b/package-lock.json
index e814331..1209353 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@openzeppelin/contracts": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npm.taobao.org/@openzeppelin/contracts/download/@openzeppelin/contracts-2.5.0.tgz",
-      "integrity": "sha1-4yepi6HSa3dW/2KIWgqglno3VEk="
+      "version": "4.7.2",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.2.tgz",
+      "integrity": "sha512-4n/JL9izql8303mPqPdubuna/DWEMbmOzWYUWyCPhjhiEr2w3nQrjE7vZz1fBF+wzzP6dZbIcsgqACk53c9FGA=="
     }
   }
 }
diff --git a/package.json b/package.json
index 0b18acb..8f27693 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,6 @@
   },
   "homepage": "https://github.com/anyswap/mBTC#readme",
   "dependencies": {
-    "@openzeppelin/contracts": "2.5.0"
+    "@openzeppelin/contracts": "4.7.2"
   }
 }