Geht nicht mit Django 3.0

Folgenden Traceback erhalte ich, als ich versucht habe TUC-Card auf Django 3.0 anzuheben:

Traceback (most recent call last):
  File "/var/www/django/tuccard/env/lib64/python3.6/site-packages/django/db/utils.py", line 111, in load_backend
    return import_module('%s.base' % backend_name)
  File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/var/www/django/tuccard/env/lib64/python3.6/site-packages/ibm_db_django/base.py", line 53, in <module>
    import ibm_db_django.pybase as Base
  File "/var/www/django/tuccard/env/lib64/python3.6/site-packages/ibm_db_django/pybase.py", line 38, in <module>
    from django.utils import six
ImportError: cannot import name 'six'