diff --git a/examples/chat/package.json b/examples/chat/package.json
index af54071c32..6e52937285 100644
--- a/examples/chat/package.json
+++ b/examples/chat/package.json
@@ -7,6 +7,6 @@
   "private": true,
   "license": "BSD",
   "dependencies": {
-    "express": "3.4.8"
+    "express": "4.0.0"
   }
 }
\ No newline at end of file