diff --git a/docker/cuda-tf/Dockerfile b/docker/cuda-tf/Dockerfile
index 06931745..012a83d3 100644
--- a/docker/cuda-tf/Dockerfile
+++ b/docker/cuda-tf/Dockerfile
@@ -90,7 +90,7 @@ RUN ln -s $(which python3) /usr/local/bin/python
 # Installs the latest version by default.
 USER $NB_USER
 ARG TF_PACKAGE=tensorflow-gpu
-ARG TF_PACKAGE_VERSION=2.4
+ARG TF_PACKAGE_VERSION=2.5.0
 RUN python3 -m pip install --no-cache-dir ${TF_PACKAGE}${TF_PACKAGE_VERSION:+==${TF_PACKAGE_VERSION}}
 
 # Tensorboard jupyter(lab) extension
diff --git a/docker/py/Dockerfile b/docker/py/Dockerfile
index 3c66c6dd..2bb1e587 100644
--- a/docker/py/Dockerfile
+++ b/docker/py/Dockerfile
@@ -1,5 +1,5 @@
 # Run with the RenkuKubeSpawner via JupyterHub
-ARG BASE_IMAGE=jupyter/base-notebook:aec555e49be6
+ARG BASE_IMAGE=jupyter/base-notebook:lab-3.0.16
 FROM $BASE_IMAGE as base
 
 LABEL maintainer="Swiss Data Science Center <info@datascience.ch>"
@@ -45,11 +45,9 @@ USER $NB_USER
 COPY requirements.txt /tmp/requirements.txt
 RUN python3 -m pip install --no-cache -U pip && \
     python3 -m pip install --no-cache -r /tmp/requirements.txt && \
-    jupyter labextension install --no-build @jupyterlab/toc && \
-    jupyter labextension install --no-build jupyterlab-topbar-extension jupyterlab-system-monitor && \
-    jupyter lab build && \
-    jupyter labextension list && \
-    npm cache clean --force && \
+    # jupyter lab build && \
+    # jupyter labextension list && \
+    # npm cache clean --force && \
     rm -rf /home/${NB_USER}/.cache
 
 # fix https://github.com/SwissDataScienceCenter/renku-jupyter/issues/14
diff --git a/docker/py/requirements.txt b/docker/py/requirements.txt
index f2c3c9cc..3b742a8f 100644
--- a/docker/py/requirements.txt
+++ b/docker/py/requirements.txt
@@ -1,10 +1,9 @@
-jupyterhub==1.2.2
-jupyterlab-git==0.23.3
-jupyterlab_server<2.0
-jupyter-server-proxy==1.6.0
-nbresuse==0.4.0
-nbclient<0.5.1
-papermill==2.3.1
+jupyter-server-proxy~=3.1.0
+jupyterhub~=1.4.0
+jupyterlab-git==0.30.1
+jupyterlab-system-monitor~=0.8.0
+jupyterlab~=3.0.0
+papermill~=2.3.0
 pipx>=0.15.0.0
-powerline-shell==0.7.0
+powerline-shell~=0.7.0
 requests>=2.20.0