diff --git a/openedx/core/djangoapps/schedules/tests/test_resolvers.py b/openedx/core/djangoapps/schedules/tests/test_resolvers.py
index df9882bc10..26a2631b48 100644
--- a/openedx/core/djangoapps/schedules/tests/test_resolvers.py
+++ b/openedx/core/djangoapps/schedules/tests/test_resolvers.py
@@ -120,7 +120,7 @@ class TestCourseUpdateResolver(SchedulesResolverTestMixin, ModuleStoreTestCase):
         return CourseUpdateResolver(
             async_send_task=Mock(name='async_send_task'),
             site=self.site_config.site,
-            target_datetime=enrollment.schedule.start,
+            target_datetime=enrollment.schedule.start_date,
             day_offset=-7,
             bin_num=CourseUpdateResolver.bin_num_for_user_id(self.user.id),
         )
diff --git a/openedx/core/djangoapps/schedules/tests/test_signals.py b/openedx/core/djangoapps/schedules/tests/test_signals.py
index b80b58266e..0588cbf3a4 100644
--- a/openedx/core/djangoapps/schedules/tests/test_signals.py
+++ b/openedx/core/djangoapps/schedules/tests/test_signals.py
@@ -155,7 +155,7 @@ class CreateScheduleTests(SharedModuleStoreTestCase):
         mock_get_current_site.return_value = site
         course = _create_course_run(self_paced=True, start_day_offset=5)  # course starts in future
         enrollment = CourseEnrollmentFactory(course_id=course.id, mode=CourseMode.AUDIT)
-        assert _strip_secs(enrollment.schedule.start) == _strip_secs(course.start)
+        assert _strip_secs(enrollment.schedule.start_date) == _strip_secs(course.start)
 
     @override_waffle_flag(CREATE_SCHEDULE_WAFFLE_FLAG, True)
     def test_course_already_started(self, mock_get_current_site):
@@ -167,7 +167,7 @@ class CreateScheduleTests(SharedModuleStoreTestCase):
         mock_get_current_site.return_value = site
         course = _create_course_run(self_paced=True, start_day_offset=-5)  # course already started
         enrollment = CourseEnrollmentFactory(course_id=course.id, mode=CourseMode.AUDIT)
-        assert _strip_secs(enrollment.schedule.start) == _strip_secs(enrollment.created)
+        assert _strip_secs(enrollment.schedule.start_date) == _strip_secs(enrollment.created)
 
 
 @ddt.ddt