diff --git a/README.md b/README.md
index d64088c..6909f82 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ Access public transit data from [Nederlandse Spoorwegen API](http://www.ns.nl/re
 [![Coverage Status](https://coveralls.io/repos/github/fvdm/nodejs-ns-api/badge.svg?branch=master)](https://coveralls.io/github/fvdm/nodejs-ns-api?branch=master)
 [![bitHound Dependencies](https://www.bithound.io/github/fvdm/nodejs-ns-api/badges/dependencies.svg)](https://www.bithound.io/github/fvdm/nodejs-ns-api/develop/dependencies/npm)
 [![bitHound Code](https://www.bithound.io/github/fvdm/nodejs-ns-api/badges/code.svg)](https://www.bithound.io/github/fvdm/nodejs-ns-api)
+[![Greenkeeper badge](https://badges.greenkeeper.io/fvdm/nodejs-ns-api.svg)](https://greenkeeper.io/)
 
 
 To use this module you need API access credentials,
diff --git a/package.json b/package.json
index f3e1572..b0e90bc 100644
--- a/package.json
+++ b/package.json
@@ -28,9 +28,9 @@
     "nodexml": "^1.0.2"
   },
   "devDependencies": {
-    "coveralls": "^2.13.1",
+    "coveralls": "^3.0.0",
     "dotest": "^2.0.0",
-    "eslint": "^3.19.0",
+    "eslint": "^4.9.0",
     "istanbul": "^0.4.5"
   },
   "engines": {