diff --git a/package-lock.json b/package-lock.json
index 69acff3..5725ca4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,9 +25,9 @@
       }
     },
     "acorn": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npm.taobao.org/acorn/download/acorn-7.1.0.tgz",
-      "integrity": "sha1-lJ028sKSU12mAig1hsJHfFfrLWw=",
+      "version": "7.4.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.4.0.tgz",
+      "integrity": "sha512-+G7P8jJmCHr+S+cLfQxygbWhXy+8YTVGzAkpEbcLo2mLoL7tij/VG41QSHACSf5QgYRhMZYHuNc6drJaO0Da+w==",
       "dev": true
     },
     "acorn-jsx": {