I build and run Dockerfile from here:

docker build -t jupyterhub-oauth .
docker run -it -p 9999:8000 --env-file=env jupyterhub-oauth

After authentification I got:

[D 2019-12-19 18:45:35.109 JupyterHub user:542] Calling Spawner.start for kenenbek
[I 2019-12-19 18:45:35.113 JupyterHub spawner:1387] Spawning jupyterhub-singleuser --port=38765
[D 2019-12-19 18:45:35.284 JupyterHub spawner:1084] Polling subprocess every 30s
Traceback (most recent call last):
  File "/opt/conda/lib/python3.6/site-packages/jupyterhub/singleuser.py", line 24, in <module>
    import notebook
ModuleNotFoundError: No module named 'notebook'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/conda/bin/jupyterhub-singleuser", line 6, in <module>
    from jupyterhub.singleuser import main
  File "/opt/conda/lib/python3.6/site-packages/jupyterhub/singleuser.py", line 26, in <module>
    raise ImportError("JupyterHub single-user server requires notebook >= 4.0")
ImportError: JupyterHub single-user server requires notebook >= 4.0

How can I fix it?