diff --git a/about/package.json b/about/package.json
old mode 100755
new mode 100644
index 10489bb..7d016b6
--- a/about/package.json
+++ b/about/package.json
@@ -24,7 +24,7 @@
     "underscore": "~1.5.1",
     "express": "~2.5.9",
     "mustache": "~0.7.2",
-    "socket.io": "~0.9.16"
+    "socket.io": "~2.4.0"
   },
   "devDependencies": {
     "grunt-contrib-qunit": "~0.5.2",