diff --git a/reveal.js/package.json b/reveal.js/package.json
index 53779b2..9963652 100644
--- a/reveal.js/package.json
+++ b/reveal.js/package.json
@@ -25,7 +25,7 @@
     "express": "~4.13.3",
     "grunt-cli": "~0.1.13",
     "mustache": "~2.2.1",
-    "socket.io": "~1.3.7"
+    "socket.io": "~1.7.4"
   },
   "devDependencies": {
     "grunt": "~0.4.5",