diff --git a/Dockerfile b/Dockerfile
index 5688973..1c248ca 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,6 +27,14 @@ ENV SHELL=/bin/bash \
     LANGUAGE=en_US.UTF-8
 ENV HOME="/home/${NB_USER}"
 
+# Create NB_USER with name jovyan user with UID=1000 and in the 'users' group
+# and make sure these dirs are writable by the `users` group.
+RUN echo "auth requisite pam_deny.so" >> /etc/pam.d/su && \
+    sed -i.bak -e 's/^%admin/#%admin/' /etc/sudoers && \
+    sed -i.bak -e 's/^%sudo/#%sudo/' /etc/sudoers && \
+    chmod g+w /etc/passwd && \
+    fix-permissions "${HOME}"
+
 RUN apt-get update --yes && \
     apt-get upgrade --yes && \
     apt-get install --yes --no-install-recommends \
@@ -47,7 +55,13 @@ ADD 04_copy_env.sh /etc/cont-init.d/04_copy_env
 ADD 05_setup_rsession_parameters.sh /etc/cont-init.d/05_setup_rsession_parameters
 
 # Install the jupiterhub proxy
-RUN pip3 install jupyter-rsession-proxy jupyterhub notebook
+RUN pip3 install \
+    jupyterhub \
+    jupyterlab \
+    jupyter-rsession-proxy \
+    jupyter-server-proxy \
+    notebook
+
 RUN apt-get clean && rm -rf /var/lib/apt/lists/* && \
     echo "en_US.UTF-8 UTF-8" > /etc/locale.gen && \
     locale-gen
@@ -60,14 +74,9 @@ RUN chmod a+rx /usr/local/bin/fix-permissions
 # hadolint ignore=SC2016
 RUN sed -i 's/^#force_color_prompt=yes/force_color_prompt=yes/' /etc/skel/.bashrc
 
-# Create NB_USER with name jovyan user with UID=1000 and in the 'users' group
-# and make sure these dirs are writable by the `users` group.
-RUN echo "auth requisite pam_deny.so" >> /etc/pam.d/su && \
-    sed -i.bak -e 's/^%admin/#%admin/' /etc/sudoers && \
-    sed -i.bak -e 's/^%sudo/#%sudo/' /etc/sudoers && \
-    chmod g+w /etc/passwd && \
-    fix-permissions "${HOME}"
-
+RUN NODE_OPTIONS="--openssl-legacy-provider" \
+    jupyter labextension install \
+        @jupyter-widgets/jupyterlab-manager jupyter-leaflet
 # Prepare the workspace environment
 # RUN mkdir -p /opt/workspace-lib
 # RUN mkdir /var/log/workspace-lib
@@ -75,6 +84,6 @@ RUN echo "auth requisite pam_deny.so" >> /etc/pam.d/su && \
 # ADD 06_workspace_mount.sh /etc/cont-init.d/06_workspace_mount
 # ADD 06-fuse-logback.xml /opt/workspace-lib/logback.xml
 
-EXPOSE 8787
+# EXPOSE 8787
 
-CMD ["/init"]
+# CMD ["/init"]