diff --git a/h/migrations/versions/9c0efdf762a6_add_user_group_created_and_updated_.py b/h/migrations/versions/9c0efdf762a6_add_user_group_created_and_updated_.py
new file mode 100644
index 00000000000..42c266a00fd
--- /dev/null
+++ b/h/migrations/versions/9c0efdf762a6_add_user_group_created_and_updated_.py
@@ -0,0 +1,17 @@
+"""Add user_group.created and updated columns."""
+
+from alembic import op
+from sqlalchemy import Column, DateTime
+
+revision = "9c0efdf762a6"
+down_revision = "59f42b6a0cd9"
+
+
+def upgrade():
+    op.add_column("user_group", Column("created", DateTime))
+    op.add_column("user_group", Column("updated", DateTime))
+
+
+def downgrade():
+    op.drop_column("user_group", "updated")
+    op.drop_column("user_group", "created")