diff --git a/README.rst b/README.rst
index ddc4d1a..71e181a 100644
--- a/README.rst
+++ b/README.rst
@@ -5,7 +5,7 @@ Colander
 .. image:: https://travis-ci.org/Pylons/colander.svg?branch=master
         :target: https://travis-ci.org/Pylons/colander
 
-.. image:: https://readthedocs.org/projects/colander/badge/?version=master
+.. image:: https://readthedocs.org/projects/colander/badge/?version=latest
         :target: http://docs.pylonsproject.org/projects/colander/en/latest/
         :alt: Documentation Status