diff --git a/setup.py b/setup.py
index 603aa34a..4b25b91d 100644
--- a/setup.py
+++ b/setup.py
@@ -73,7 +73,7 @@ requires = [
     'pyramid_exclog',                   # 0.6
     'pyramid_simpleform',               # 0.6.1
     'pyramid_tm',                       # 0.3
-    'rattail[db]>=0.3.9',               #                       0.3.9
+    'rattail[db]>=0.3.18',              #                       0.3.18
     'transaction',                      # 1.2.0
     'waitress',                         # 0.8.1
     'WebHelpers',                       # 1.3