diff --git a/demo/ast/package-lock.json b/demo/ast/package-lock.json
index 2f71f14..f7758d2 100644
--- a/demo/ast/package-lock.json
+++ b/demo/ast/package-lock.json
@@ -329,13 +329,10 @@
       "dev": true
     },
     "json5": {
-      "version": "2.1.3",
-      "resolved": "https://registry.npm.taobao.org/json5/download/json5-2.1.3.tgz",
-      "integrity": "sha1-ybD3+pIzv+WAf+ZvzzpWF+1ZfUM=",
-      "dev": true,
-      "requires": {
-        "minimist": "^1.2.5"
-      }
+      "version": "2.2.3",
+      "resolved": "https://registry.npmmirror.com/json5/-/json5-2.2.3.tgz",
+      "integrity": "sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg==",
+      "dev": true
     },
     "lodash": {
       "version": "4.17.20",
@@ -343,12 +340,6 @@
       "integrity": "sha1-tEqbYpe8tpjxxRo1RaKzs2jVnFI=",
       "dev": true
     },
-    "minimist": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npm.taobao.org/minimist/download/minimist-1.2.5.tgz",
-      "integrity": "sha1-Z9ZgFLZqaoqqDAg8X9WN9OTpdgI=",
-      "dev": true
-    },
     "ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npm.taobao.org/ms/download/ms-2.1.2.tgz",