diff --git a/openedx/features/course_duration_limits/tests/test_course_expiration.py b/openedx/features/course_duration_limits/tests/test_course_expiration.py
index d50f27020c..54470bb702 100644
--- a/openedx/features/course_duration_limits/tests/test_course_expiration.py
+++ b/openedx/features/course_duration_limits/tests/test_course_expiration.py
@@ -3,15 +3,18 @@ Contains tests to verify correctness of course expiration functionality
 """
 
 from datetime import timedelta
+from unittest import mock
 
 import ddt
-from unittest import mock
 import six
 from django.conf import settings
 from django.urls import reverse
 from django.utils.timezone import now
 
 from common.djangoapps.course_modes.models import CourseMode
+from common.djangoapps.student.models import CourseEnrollment, FBEEnrollmentExclusion
+from common.djangoapps.student.roles import CourseInstructorRole
+from common.djangoapps.student.tests.factories import TEST_PASSWORD, CourseEnrollmentFactory, UserFactory
 from lms.djangoapps.courseware.tests.factories import (
     BetaTesterFactory,
     GlobalStaffFactory,
@@ -35,9 +38,6 @@ from openedx.features.content_type_gating.helpers import CONTENT_GATING_PARTITIO
 from openedx.features.course_duration_limits.access import get_user_course_expiration_date
 from openedx.features.course_duration_limits.models import CourseDurationLimitConfig
 from openedx.features.course_experience.tests.views.helpers import add_course_mode
-from common.djangoapps.student.models import CourseEnrollment, FBEEnrollmentExclusion
-from common.djangoapps.student.roles import CourseInstructorRole
-from common.djangoapps.student.tests.factories import TEST_PASSWORD, CourseEnrollmentFactory, UserFactory
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
 from xmodule.modulestore.tests.factories import CourseFactory
 from xmodule.partitions.partitions import ENROLLMENT_TRACK_PARTITION_ID
diff --git a/openedx/features/course_duration_limits/tests/test_models.py b/openedx/features/course_duration_limits/tests/test_models.py
index 6d4a66cce5..0473faefd3 100644
--- a/openedx/features/course_duration_limits/tests/test_models.py
+++ b/openedx/features/course_duration_limits/tests/test_models.py
@@ -4,13 +4,13 @@ Tests of CourseDurationLimitConfig.
 
 import itertools
 from datetime import datetime, timedelta
+from unittest.mock import Mock
 
 import ddt
 import pytest
 import pytz
 from django.utils import timezone
 from edx_django_utils.cache import RequestCache
-from unittest.mock import Mock
 from opaque_keys.edx.locator import CourseLocator
 
 from common.djangoapps.course_modes.tests.factories import CourseModeFactory