diff --git a/README.md b/README.md
index 5b5342a..9c2c8ce 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Simple gem for autogenerating permalink style slugs for your ActiveRecord models
 
 ## Requirements
 
-* Ruby 1.9.2 or 1.9.3
+* Ruby 1.9.2, 1.9.3 or 2.0.0
 * Rails 3.1 or higher.
 
 It should work with Rails 3.0 but it hasn't been tested.