diff --git a/setup.py b/setup.py
index e14512d87..9224f94a9 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,9 @@
         'django-crispy-forms>=1.6.0',
         'django-reversion>=2.0.0',
         'django-formtools>=1.0',
-        'httplib2==0.9.2'
+        'httplib2==0.9.2',
+        'future',
+        'six'
     ],
     extras_require={
         'Excel': ['xlwt', 'xlsxwriter'],