diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index c99db7b..a6c91ec
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "koa-static": "^1.5.2",
     "koa-validate": "~1.0.0",
     "koa-views": "^3.1.0",
-    "lodash": "~4.11.1",
+    "lodash": "~4.17.19",
     "moment": "~2.13.0",
     "mongoose": "~4.4.13",
     "randomcolor": "~0.4.4"