ModuleNotFoundError: No module named 'django.test' while python manage.py test

File "/home/aleksander/python_apps/insta_clon/instavenv/lib/python3.6/site-packages/django/core/management/commands/test.py", line 44, in add_arguments test_runner_class = get_runner(settings, self.test_runner) File "/home/aleksander/python_apps/insta_clon/instavenv/lib/python3.6/site-packages/django/test/utils.py", line 308, in get_runner test_module = import(test_module_name, {}, {}, test_path[-1]) ModuleNotFoundError: No module named 'django.tests'