diff --git a/.travis.yml b/.travis.yml
index c1baa2736d..0b010bcbae 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ node_js:
   - "0.8"
   - "0.10"
   - "0.12"
+  - "4.0.0"
 
 git:
   depth: 1
diff --git a/Readme.md b/Readme.md
index dabdd68ec1..83e6c4b5d7 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1,7 +1,7 @@
 
 # socket.io
 
-[![Build Status](https://secure.travis-ci.org/Automattic/socket.io.svg)](http://travis-ci.org/Automattic/socket.io)
+[![Build Status](https://travis-ci.org/socketio/socket.io.svg)](https://travis-ci.org/socketio/socket.io)
 ![NPM version](https://badge.fury.io/js/socket.io.svg)
 ![Downloads](http://img.shields.io/npm/dm/socket.io.svg?style=flat)
 [![](http://slack.socket.io/badge.svg)](http://slack.socket.io)
diff --git a/package.json b/package.json
index 31e8bfd940..d6779adc47 100644
--- a/package.json
+++ b/package.json
@@ -18,10 +18,10 @@
     "url": "git://github.com/Automattic/socket.io"
   },
   "scripts": {
-    "test": "mocha --reporter dot --slow 200ms --bail"
+    "test": "mocha --reporter dot --slow 200ms"
   },
   "dependencies": {
-    "engine.io": "automattic/engine.io#f3fd4bb",
+    "engine.io": "1.5.3",
     "socket.io-parser": "2.2.4",
     "socket.io-client": "automattic/socket.io-client#bf98153",
     "socket.io-adapter": "automattic/socket.io-adapter#de5cba",