diff --git a/django_celery_results/managers.py b/django_celery_results/managers.py
index 8cb15068..844e42ce 100644
--- a/django_celery_results/managers.py
+++ b/django_celery_results/managers.py
@@ -8,7 +8,7 @@
 from django.conf import settings
 from django.db import connections, models, router, transaction
 
-from .utils import now, raw_delete
+from .utils import now
 
 W_ISOLATION_REP = """
 Polling results with transaction isolation level 'repeatable-read'
@@ -87,7 +87,7 @@ def get_all_expired(self, expires):
     def delete_expired(self, expires):
         """Delete all expired results."""
         with transaction.atomic(using=self.db):
-            raw_delete(queryset=self.get_all_expired(expires))
+            self.get_all_expired(expires).delete()
 
 
 class TaskResultManager(ResultManager):
diff --git a/django_celery_results/utils.py b/django_celery_results/utils.py
index 8a4b2851..32fcaa67 100644
--- a/django_celery_results/utils.py
+++ b/django_celery_results/utils.py
@@ -15,8 +15,3 @@ def now():
         return now_localtime(timezone.now())
     else:
         return timezone.now()
-
-
-def raw_delete(queryset):
-    """Raw delete given queryset."""
-    return queryset._raw_delete(queryset.db)
diff --git a/t/unit/test_utils.py b/t/unit/test_utils.py
deleted file mode 100644
index 344f1449..00000000
--- a/t/unit/test_utils.py
+++ /dev/null
@@ -1,41 +0,0 @@
-from celery import uuid
-from django.test import TransactionTestCase
-
-from django_celery_results.models import TaskResult
-from django_celery_results.utils import raw_delete
-
-_TEST_RECORDS_COUNT = 100
-
-
-class RawDeleteTest(TransactionTestCase):
-    """Unit test for `utils.raw_delete` func."""
-
-    def setUp(self):
-        # setup test results to be used against raw_delete
-        TaskResult.objects.bulk_create(
-            [TaskResult(task_id=uuid()) for _ in range(_TEST_RECORDS_COUNT)]
-        )
-        assert TaskResult.objects.count() == _TEST_RECORDS_COUNT
-
-    def _get_sample_result_ids(self, count):
-        return TaskResult.objects.values_list("pk").order_by("?")[:count]
-
-    def test_all_rows_delete(self):
-        raw_delete(
-            queryset=TaskResult.objects.all()
-        )
-        assert TaskResult.objects.count() == 0
-
-    def test_correct_rows_deleted(self):
-        # sample random 10 rows
-        sample_size = 10
-        sample_ids = self._get_sample_result_ids(count=sample_size)
-        # update task_name to "test"
-        TaskResult.objects.filter(pk__in=sample_ids).update(task_name="test")
-        # "raw delete" results with name = "test"
-        raw_delete(
-            queryset=TaskResult.objects.filter(task_name="test")
-        )
-        assert TaskResult.objects.filter(task_name="test").count() == 0
-        results_remaining = _TEST_RECORDS_COUNT - sample_size
-        assert TaskResult.objects.count() == results_remaining
diff --git a/tox.ini b/tox.ini
index ee676c0d..509f9cd1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,6 +29,7 @@ deps=
     django41: -r{toxinidir}/requirements/test-django41.txt
     django40: -r{toxinidir}/requirements/test-django40.txt
     django32: -r{toxinidir}/requirements/test-django32.txt
+    django42: -r{toxinidir}/requirements/test-django42.txt
 
     cov,integration: -r{toxinidir}/requirements/test-django.txt