diff --git a/README.md b/README.md
index 549ec4e..dc8ea4f 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@
 [![NPM Downloads][downloads-image]][downloads-url]
 [![Build status][travis-image]][travis-url]
 [![Test coverage][coveralls-image]][coveralls-url]
+[![Greenkeeper badge](https://badges.greenkeeper.io/blakeembrey/server-address.svg)](https://greenkeeper.io/)
 
 Listen to a randomly available port and resolve urls relative to the server address.
 
diff --git a/package.json b/package.json
index 0b2bc90..41ebde8 100644
--- a/package.json
+++ b/package.json
@@ -34,13 +34,13 @@
   },
   "homepage": "https://github.com/blakeembrey/server-address",
   "devDependencies": {
-    "chai": "^2.3.0",
-    "istanbul": "^0.3.5",
+    "chai": "^3.5.0",
+    "istanbul": "^0.4.5",
     "jshint": "^2.6.0",
-    "mocha": "^2.1.0",
+    "mocha": "^3.3.0",
     "pre-commit": "^1.0.7",
     "request": "^2.51.0",
-    "standard": "^3.8.0",
+    "standard": "^10.0.2",
     "which": "^1.0.8"
   },
   "dependencies": {