diff --git a/setup.py b/setup.py
index 130f8f1..15d0aaa 100644
--- a/setup.py
+++ b/setup.py
@@ -21,6 +21,7 @@ requirements = [
     'zope.sqlalchemy',
     'waitress',
     'bcrypt',
+    'deform'
 ]
 
 setup_requirements = [