diff --git a/README.md b/README.md
index 3995bf0..018e863 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 # broken [![Build Status](https://travis-ci.org/zeekay/broken.svg?branch=master)](https://travis-ci.org/zeekay/broken) [![npm version](https://badge.fury.io/js/broken.svg)](https://badge.fury.io/js/broken)
 ##### Promises are meant to be broken.
 
+[![Greenkeeper badge](https://badges.greenkeeper.io/zeekay/broken.svg)](https://greenkeeper.io/)
+
 Extra batteries for [Zousan](https://github.com/bluejava/zousan), a lightning
 fast, very small Promise A+ compliant implementation.
 
diff --git a/package.json b/package.json
index d548a57..5db52bd 100644
--- a/package.json
+++ b/package.json
@@ -4,18 +4,18 @@
   "description": "Promises are meant to be broken.",
   "main": "lib/",
   "dependencies": {
-    "zousan": "2.2.2"
+    "zousan": "2.3.3"
   },
   "devDependencies": {
-    "cake-publish": "0.1.1",
+    "cake-publish": "0.1.5",
     "cake-test": "0.1.0",
-    "cake-version": "0.1.3",
+    "cake-version": "0.1.9",
     "chai": "3.5.0",
-    "chai-as-promised": "5.3.0",
+    "chai-as-promised": "6.0.0",
     "co-mocha": "^1.1.2",
     "coffee-script": "^1.10.0",
-    "mocha": "^2.3.4",
-    "shortcake": "1.1.16"
+    "mocha": "^3.2.0",
+    "shortcake": "1.1.18"
   },
   "scripts": {
     "prepublish": "cake build",