diff --git a/setup.py b/setup.py
index fbb5dda..a63d96a 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
         'argparse',
         'distribute',
         'Jinja2',
-        'Markdown',
+        'Markdown=2.6.11',
         'Pygments',
         'argparse',
         'GitPython'