diff --git a/setup.py b/setup.py
index 79ae00c..6d01096 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@ setup(name="Polynum",
       package_data={},
       install_requires=[
           'django >= 1.4',
-          'south >= 0.7',
+          'south>=0.8,<0.9',
           'django-crispy-forms',
           'django-sekizai',
           'pypdf',