diff --git a/setup.py b/setup.py
index 6317aab..f81a1fb 100644
--- a/setup.py
+++ b/setup.py
@@ -94,6 +94,7 @@ extras = {
         #
         # package                       # low                   high
 
+        'alembic',                      # 0.3.1
         'SQLAlchemy',                   # 0.7.6
         # 'Tempita',                      # 0.5.1
         ],