diff --git a/package.json b/package.json
index 7843819..fd14886 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "express": "~4.15.3",
     "grunt-cli": "^1.3.0",
     "mustache": "~2.2.1",
-    "socket.io": "~2.0.0",
+    "socket.io": "~2.5.0",
     "underscore": "~1.13.0"
   },
   "devDependencies": {