diff --git a/src/receiptwitness/shared/models/stub_purchase.py b/src/receiptwitness/shared/models/stub_purchase.py
index b872356..5d500c3 100644
--- a/src/receiptwitness/shared/models/stub_purchase.py
+++ b/src/receiptwitness/shared/models/stub_purchase.py
@@ -8,7 +8,6 @@ UserStoreAccount. The canonical definitions live in cartsnitch/common.
 import uuid
 from datetime import date, datetime
 from decimal import Decimal
-
 from typing import TYPE_CHECKING
 
 from sqlalchemy import (
diff --git a/src/receiptwitness/shared/models/stub_store.py b/src/receiptwitness/shared/models/stub_store.py
index 283f6a3..f08bbc5 100644
--- a/src/receiptwitness/shared/models/stub_store.py
+++ b/src/receiptwitness/shared/models/stub_store.py
@@ -6,7 +6,6 @@ UserStoreAccount. The canonical definitions live in cartsnitch/common.
 """
 
 import uuid
-
 from typing import TYPE_CHECKING
 
 from sqlalchemy import Float, ForeignKey, String