diff --git a/README.rst b/README.rst
index fdc4f8d9..2a5b91d2 100644
--- a/README.rst
+++ b/README.rst
@@ -37,6 +37,8 @@ You need to install django 1.6,...
     python manage.py sample_data
     python manage.py createinitialrevisions
 
+Also, greenmine only runs over python 3.3+.
+
 
 Auth: admin/123123