diff --git a/k8s/Dockerfile-hub b/k8s/Dockerfile-hub
index 4857622..c4fa8f1 100644
--- a/k8s/Dockerfile-hub
+++ b/k8s/Dockerfile-hub
@@ -5,6 +5,6 @@ COPY --chown=1000:1000 spawn_pending.html /usr/local/share/jupyterhub/templates/
 COPY --chown=1000:1000 jupyter.png /usr/local/share/jupyterhub/static/images/jupyter.png
 COPY --chown=1000:1000 favicon.ico /usr/local/share/jupyterhub/static/favicon.ico
 COPY --chown=1000:1000 favicon.ico /usr/local/share/jupyterhub/static/images/favicon.ico
-COPY --chown=1000:1000 auth.py /usr/local/lib/python3.6/dist-packages/tmpauthenticator/__init__.py
+COPY --chown=1000:1000 auth.py /usr/local/lib/python3.8/dist-packages/tmpauthenticator/__init__.py
 COPY --chown=1000:1000 hot_fix_for_eventsource.js /usr/local/share/jupyterhub/static/hot_fix_for_eventsource.js
 CMD ["jupyterhub", "--config", "/srv/jupyterhub_config.py"]
\ No newline at end of file