diff --git a/Dockerfile b/Dockerfile
index 7ec1db1..d6881fc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,11 +3,13 @@ FROM jupyter/scipy-notebook
 LABEL Maintainer="Wolfgang Hottgenroth <wolfgang.hottgenroth@icloud.com>"
 LABEL ImageName="registry.gitlab.com/wolutator/registry.gitlab.com/wolutator/"
 
+ENV GATEWAY_URL
+
 RUN \
   pip install influxdb && \
   pip install pymongo && \
   fix-permissions $CONDA_DIR && \
   fix-permissions /home/$NB_USER 
 
-CMD ["start-notebook.sh", "--NotebookApp.token=''"]
+CMD ["start-notebook.sh", "--NotebookApp.token=''" "--gateway-url" "${GATEWAY}"]
 
diff --git a/VERSION b/VERSION
index 5625e59..7e32cd5 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.2
+1.3