diff --git a/package-lock.json b/package-lock.json
index 5c149eb..de740df 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,9 +25,9 @@
       "integrity": "sha1-f3iq7VFitMche9ee0F0QEaPhjk8="
     },
     "acorn": {
-      "version": "5.5.3",
-      "resolved": "http://registry.npm.taobao.org/acorn/download/acorn-5.5.3.tgz",
-      "integrity": "sha1-9HPdR+AnegjijpvsWu6wR1HwuMk=",
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
       "dev": true
     },
     "acorn-jsx": {
@@ -41,8 +41,8 @@
       "dependencies": {
         "acorn": {
           "version": "3.3.0",
-          "resolved": "http://registry.npm.taobao.org/acorn/download/acorn-3.3.0.tgz",
-          "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "integrity": "sha512-OLUyIIZ7mF5oaAUT1w0TFqQS81q3saT46x8t7ukpPjMNk+nbs4ZHhs7ToV8EWnLYLepjETXd4XaCE4uxkMeqUw==",
           "dev": true
         }
       }