diff --git a/README.md b/README.md
index 76c90cf..948e3a6 100644
--- a/README.md
+++ b/README.md
@@ -271,6 +271,7 @@ There're also some great commercial libraries, like [amchart](http://www.amchart
 * [async](https://github.com/caolan/async) - Async utilities for node and the browser.
 * [q](https://github.com/kriskowal/q) - A tool for making and composing asynchronous promises in JavaScript.
 * [step](https://github.com/creationix/step/) - An async control-flow library that makes stepping through logic easy.
+* [contra](https://github.com/bevacqua/contra/) - Asynchronous flow control with a functional taste to it.
 
 
 ## Routing