diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index ac5e2556..7386ce7e
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "dependencies": {
     "body-parser": "~1.10.0",
     "errorhandler": "~1.3.2",
-    "express": "~4.11.1",
+    "express": "~4.17.1",
     "jade": "~1.9.1",
     "multer": "^0.1.7",
     "request": "~2.51.0",