diff --git a/package.json b/package.json
index b0ccd77..23d9192 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,6 @@
     "debug": "~4.1.1",
     "express": "~4.12.2",
     "jade": "~1.9.2",
-    "socket.io": "1.3.5"
+    "socket.io": "2.5.0"
   }
 }