diff --git a/package-lock.json b/package-lock.json
index 13a9da3..ed7b163 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "gitum",
-  "version": "1.0.2",
+  "version": "1.0.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -25,9 +25,9 @@
       }
     },
     "acorn": {
-      "version": "6.0.4",
-      "resolved": "http://r.npm.sankuai.com/acorn/download/acorn-6.0.4.tgz",
-      "integrity": "sha1-dzd+c1O3LsUQRVCqLSCXov1At1Q=",
+      "version": "6.4.2",
+      "resolved": "https://r.cnpmjs.org/acorn/download/acorn-6.4.2.tgz",
+      "integrity": "sha1-NYZv1xBSjpLeEM8GAWSY5H454eY=",
       "dev": true
     },
     "acorn-jsx": {