diff --git a/Dockerfile b/Dockerfile
index 7c10bbb..7b6f7ee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,12 +3,12 @@ ARG NB_USER="jovyan"
 ARG NB_UID="1000"
 ARG NB_GID="100"
 FROM ${LAB_IMAGE}
-RUN echo "install custom extensions"
+
 USER root
 RUN apt-get install --yes --no-install-recommends \
     git-lfs 
 USER ${NB_UID}
-
+RUN echo "install custom extensions"
 RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-sandbox-theme==0.1.4
 RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-sandbox-announcement==0.1.3
 #RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-data-pool