diff --git a/src/pretix/base/models/items.py b/src/pretix/base/models/items.py
index d2b59eed13..799cf011f2 100644
--- a/src/pretix/base/models/items.py
+++ b/src/pretix/base/models/items.py
@@ -43,6 +43,7 @@ from collections import Counter, OrderedDict, defaultdict
 from datetime import date, datetime, time, timedelta
 from decimal import Decimal, DecimalException
 from itertools import groupby
+from math import inf
 from typing import Optional, Tuple
 from zoneinfo import ZoneInfo
 
@@ -64,7 +65,6 @@ from django.utils.translation import gettext_lazy as _, pgettext_lazy
 from django_countries.fields import Country
 from django_scopes import ScopedManager
 from i18nfield.fields import I18nCharField, I18nTextField
-from math import inf
 
 from pretix.base.models.base import LoggedModel
 from pretix.base.models.fields import MultiStringField
diff --git a/src/pretix/presale/checkoutflow.py b/src/pretix/presale/checkoutflow.py
index 4977f1d5ba..87d9baab52 100644
--- a/src/pretix/presale/checkoutflow.py
+++ b/src/pretix/presale/checkoutflow.py
@@ -36,6 +36,7 @@ import inspect
 import uuid
 from collections import defaultdict
 from decimal import Decimal
+from math import inf
 
 from django.conf import settings
 from django.contrib import messages
@@ -54,7 +55,6 @@ from django.utils.translation import (
 )
 from django.views.generic.base import TemplateResponseMixin
 from django_scopes import scopes_disabled
-from math import inf
 
 from pretix.base.models import Customer, Membership, Order
 from pretix.base.models.items import Question