diff --git a/README.markdown b/README.markdown
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 [![build status](https://secure.travis-ci.org/superfeedr/indexeddb-backbonejs-adapter.png)](http://travis-ci.org/superfeedr/indexeddb-backbonejs-adapter)
-This is an [IndexedDB](http://www.w3.org/TR/IndexedDB/) adapter for [Backbone.js](http://documentcloud.github.com/backbone/).
+This is an [IndexedDB](http://www.w3.org/TR/IndexedDB/) adapter for [Backbone.js](https://github.com/jashkenas/backbone/).
 
 # Warnings