diff --git a/pyproject.toml b/pyproject.toml
index d22a6d7..4f38688 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ dependencies = [
         "SQLAlchemy-Utils",
         "waitress",
         "WebHelpers2",
-        "WuttJamaican[db]>=0.28.7",
+        "WuttJamaican[db]>=0.28.9",
         "zope.sqlalchemy>=1.5",
 
         # nb. this must be pinned for now, until SQLAlchemy-Utils