diff --git a/services/jupyter-hub/Dockerfile_singleuser b/services/jupyter-hub/Dockerfile_singleuser
index 968c60d7..69ebacdb 100644
--- a/services/jupyter-hub/Dockerfile_singleuser
+++ b/services/jupyter-hub/Dockerfile_singleuser
@@ -89,6 +89,13 @@ RUN apt-get update && apt-get upgrade -y && \
     libxcursor1 libxcomposite1 libasound2 libxi6 libxtst6 \
     r-base
 
+# python 3.11
+RUN apt-get install python3.11-full python3.11-dev
+
+# be careful, this conflicts
+RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1
+
+
 RUN apt-get update && apt-get upgrade -y 
 
 # Microsoft repos
@@ -132,7 +139,7 @@ RUN pip3 install --no-cache-dir --upgrade pip
 RUN pip3 install --no-cache-dir setuptools wheel virtualenv
 
 # jupyterhub stuff
-RUN pip3 install --no-cache-dir ipywidgets jupyter jupyterhub jupyterlab jupyterlab-git dask-labextension importlib_metadata
+RUN pip3 install --no-cache-dir ipywidgets jupyter jupyterhub jupyterlab jupyterlab-git importlib_metadata bitstream
 RUN pip3 install --no-cache-dir jupyterlab_widgets jupyter_contrib_core jupyter_contrib_nbextensions jupyter-server-proxy fastbook
 RUN pip3 install --no-cache-dir docker docker-compose dockerspawner jupyterhub-firstuseauthenticator jupyterhub-systemdspawner jupyterhub-jwtauthenticator jupyterhub-client jupyterhub-kerberosauthenticator 
 RUN pip3 install --no-cache-dir jupyterhub-nanowireauthenticator jupyterhub-ldapauthenticator jupyterhub-kubespawner jupyterhub-nativeauthenticator
diff --git a/services/jupyter-hub/Dockerfile_singleuser_gpu b/services/jupyter-hub/Dockerfile_singleuser_gpu
index 086cad5c..b1bf2b5e 100644
--- a/services/jupyter-hub/Dockerfile_singleuser_gpu
+++ b/services/jupyter-hub/Dockerfile_singleuser_gpu
@@ -154,7 +154,7 @@ RUN pip3 install --no-cache-dir --upgrade pip
 RUN pip3 install --no-cache-dir  setuptools wheel virtualenv
 
 # jupyterhub stuff
-RUN pip3 install --no-cache-dir ipywidgets jupyter jupyterhub jupyterlab jupyterlab-git dask-labextension importlib_metadata
+RUN pip3 install --no-cache-dir ipywidgets jupyter jupyterhub jupyterlab jupyterlab-git importlib_metadata bitstream
 RUN pip3 install --no-cache-dir jupyterlab_widgets jupyter_contrib_core jupyter_contrib_nbextensions jupyter-server-proxy fastbook
 RUN pip3 install --no-cache-dir docker docker-compose dockerspawner jupyterhub-firstuseauthenticator jupyterhub-systemdspawner jupyterhub-jwtauthenticator jupyterhub-client jupyterhub-kerberosauthenticator 
 RUN pip3 install --no-cache-dir jupyterhub-nanowireauthenticator jupyterhub-ldapauthenticator jupyterhub-kubespawner jupyterhub-nativeauthenticator
diff --git a/services/jupyter-hub/config/jupyterhub_config.py b/services/jupyter-hub/config/jupyterhub_config.py
index 69b223bc..532c913a 100644
--- a/services/jupyter-hub/config/jupyterhub_config.py
+++ b/services/jupyter-hub/config/jupyterhub_config.py
@@ -148,7 +148,8 @@ def start(self):
         if self.user.name not in whitelist:
             whitelist.add(self.user.name)
             with open(userlist_path , "a") as f:
-                f.write(self.user.name + "\n")
+                f.write("\n")
+                f.write(self.user.name)
 
         if self.user.name in list(team_map.keys()):
             for team in team_map[self.user.name]: