diff --git a/README.md b/README.md
index c7be319..2e37509 100644
--- a/README.md
+++ b/README.md
@@ -95,7 +95,7 @@ can cleanly monkey patch helper methods onto the
 
 Define whitelists, blacklists, throttles, and tracks as blocks that return truthy values if matched, falsy otherwise. In a Rails app
 these go in an initializer in `config/initializers/`.
-A [Rack::Request](http://rack.rubyforge.org/doc/classes/Rack/Request.html) object is passed to the block (named 'req' in the examples).
+A [Rack::Request](http://www.rubydoc.info/gems/rack/Rack/Request) object is passed to the block (named 'req' in the examples).
 
 ### Whitelists