diff --git a/examples/package-lock.json b/examples/package-lock.json
index 024554e..186b5f7 100644
--- a/examples/package-lock.json
+++ b/examples/package-lock.json
@@ -3188,9 +3188,9 @@
       "dev": true
     },
     "elliptic": {
-      "version": "6.5.2",
-      "resolved": "http://registry.npm.baidu-int.com/elliptic/-/elliptic-6.5.2.tgz",
-      "integrity": "sha1-BcVnjXFzwEnYykM1UiJKSV0ON2I=",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+      "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
       "dev": true,
       "requires": {
         "bn.js": "^4.4.0",