README.md in celluloid-io-0.14.1 vs README.md in celluloid-io-0.15.0.pre

@@ -28,10 +28,10 @@
 replacements for the standard classes, there's no need to rewrite every
 library just to take advantage of Celluloid::IO's event loop and you can
 freely switch between evented and blocking IO even over the lifetime of a
 single connection.
 
-Celluloid::IO uses the [nio4r gem](https://github.com/tarcieri/nio4r)
+Celluloid::IO uses the [nio4r gem](https://github.com/celluloid/nio4r)
 to monitor IO objects, which provides cross-platform and cross-Ruby
 implementation access to high-performance system calls such as epoll
 and kqueue.
 
 Like Celluloid::IO? [Join the Celluloid Google Group](http://groups.google.com/group/celluloid-ruby)