diff --git a/Dockerfile b/Dockerfile
index 5d7741a..d85d4f1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,9 @@ FROM ${LAB_IMAGE}
 # kaniko issue https://github.com/GoogleContainerTools/kaniko/issues/1087
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 USER root
-RUN apt-get update --yes 
+RUN apt-get update --yes && \
+    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