diff --git a/aleksis/apps/alsijil/data_checks.py b/aleksis/apps/alsijil/data_checks.py
index f454a6b1e243370e60e938bd3885d60323e7a140..a6bd822a3731553e01d982687af367e0f165e7be 100644
--- a/aleksis/apps/alsijil/data_checks.py
+++ b/aleksis/apps/alsijil/data_checks.py
@@ -1,12 +1,9 @@
 import logging
 
-from django.contrib.contenttypes.models import ContentType
 from django.db.models import F
 from django.db.models.query_utils import Q
 from django.utils.translation import gettext as _
 
-from calendarweek import CalendarWeek
-
 from aleksis.apps.chronos.util.date import week_weekday_to_date
 from aleksis.core.data_checks import DATA_CHECK_REGISTRY, DataCheck, IgnoreSolveOption, SolveOption