diff --git a/package.json b/package.json
index fb02766..8aaf410 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "index.js",
   "dependencies": {
     "express": "^4.11.2",
-    "socket.io": "^1.3.4"
+    "socket.io": "^2.1.0"
   },
   "devDependencies": {},
   "scripts": {