diff --git a/package-lock.json b/package-lock.json
index 1d1110f..eb4080f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -851,9 +851,9 @@
       "dev": true
     },
     "acorn": {
-      "version": "6.0.4",
-      "resolved": "http://registry.npm.taobao.org/acorn/download/acorn-6.0.4.tgz",
-      "integrity": "sha1-dzd+c1O3LsUQRVCqLSCXov1At1Q=",
+      "version": "6.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
       "dev": true
     },
     "acorn-jsx": {