diff --git a/package.json b/package.json
index 59aac0a2..08f4ba6a 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   ],
   "dependencies": {
     "jade": "*",
-    "express": "~3.5.2",
+    "express": "~4.0.0",
     "mongoose": "*",
     "passport": "*",
     "stylus": "~0.44.0",