diff --git a/Dockerfile b/Dockerfile
index fa899e9..328a81e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG LAB_IMAGE=jupyter/datascience-notebook:lab-3.4.7
+ARG LAB_IMAGE=jupyter/datascience-notebook:lab-3.4.3
 
 FROM ${LAB_IMAGE}
 RUN echo "install custom extensions"
@@ -7,4 +7,4 @@ RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/p
 #RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-data-pool
 #RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-training
 #RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-synthetic-data
-RUN pip install ipywebrtc opencv-python-headless jupyterlab-git
+RUN pip install ipywebrtc opencv-python-headless