diff --git a/package.json b/package.json
index 46f75814..e07248b4 100644
--- a/package.json
+++ b/package.json
@@ -1,9 +1,15 @@
 {
   "name": "socket-chat-example",
   "version": "0.0.1",
+  "engines": {
+    "node": "6.2.0"
+  },
   "description": "my first socket.io app",
+  "scripts": {
+    "start": "node index.js"
+  },
   "dependencies": {
-    "express": "4.10.2",
-    "socket.io": "1.2.0"
+    "express": "4.13.4",
+    "socket.io": "1.4.6"
   }
 }