diff --git a/.travis.yml b/.travis.yml
index 55ff2f7..cc12713 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,5 +6,6 @@ git:
 branches:
   only:
     - master
+    - /^greenkeeper/.*$/
 after_success:
   - "npm run coveralls"
diff --git a/README.md b/README.md
index 2991d5d..3f67723 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # createContent
 
-[![Build Status](https://travis-ci.com/ungap/create-content.svg?branch=master)](https://travis-ci.com/ungap/create-content) [![Coverage Status](https://coveralls.io/repos/github/ungap/create-content/badge.svg?branch=master)](https://coveralls.io/github/ungap/create-content?branch=master) ![WebReflection status](https://offline.report/status/webreflection.svg)
+[![Build Status](https://travis-ci.com/ungap/create-content.svg?branch=master)](https://travis-ci.com/ungap/create-content) [![Coverage Status](https://coveralls.io/repos/github/ungap/create-content/badge.svg?branch=master)](https://coveralls.io/github/ungap/create-content?branch=master) [![Greenkeeper badge](https://badges.greenkeeper.io/ungap/create-content.svg)](https://greenkeeper.io/) ![WebReflection status](https://offline.report/status/webreflection.svg)
 
 A cross browser utility to create HTML or SVG runtime content, as lightweight alternative to what a [HTMLTemplateElement](https://developer.mozilla.org/en-US/docs/Web/API/HTMLTemplateElement) polyfill could do through its `content` accessor.
 
diff --git a/package.json b/package.json
index 90ca68e..94598ee 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "basichtml": "^0.20.0",
     "coveralls": "^3.0.2",
     "istanbul": "^0.4.5",
-    "uglify-js": "^2.8.29"
+    "uglify-js": "^3.4.9"
   },
   "repository": {
     "type": "git",