diff --git a/setup.py b/setup.py
index d3f91686..b0f399dd 100644
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,7 @@ try:
         'kombu',
         'jinja2',
         'sphinx',
-        'Babel',
+        'Babel>=1.0',
         'argparse',
         'webtest<2',
         'ConfigObj',