diff --git a/package.json b/package.json
index 506688462..9baa1cf6a 100644
--- a/package.json
+++ b/package.json
@@ -122,7 +122,7 @@
     "mongodb": "2.2.26",
     "monk": "4.0.0",
     "morgan": "1.8.1",
-    "ms": "1.0.0",
+    "ms": "2.0.0",
     "multer": "1.3.0",
     "nprogress": "0.2.0",
     "nyaize": "0.0.2",