diff --git a/Dockerfile b/Dockerfile
index f98c011c..5eadd6b4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -52,12 +52,12 @@ RUN /bin/bash -c "source activate snakes && python setup.py install"
 RUN /bin/bash -c "source activate snakes && conda install bokeh=0.12.7"
 
 ARG INCUBATOR_VER=unknown
-RUN /bin/bash -c "INCUBATOR_VER=${INCUBATOR_VER} source activate snakes && pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple netpyne_ui"
+RUN /bin/bash -c "INCUBATOR_VER=${INCUBATOR_VER} source activate snakes && pip install netpyne_ui"
 RUN /bin/bash -c "source activate snakes && jupyter nbextension enable --py jupyter_geppetto"
 RUN /bin/bash -c "source activate snakes &&  jupyter serverextension enable --py jupyter_geppetto"
 RUN /bin/bash -c "source activate snakes && jupyter nbextension enable --py widgetsnbextension"
 
 WORKDIR /home/jovyan
-RUN git clone https://github.com/Neurosim-lab/netpyne_workspace
+RUN git clone --branch cns18 https://github.com/Neurosim-lab/netpyne_workspace
 WORKDIR /home/jovyan/netpyne_workspace
 CMD /bin/bash -c "source activate snakes && exec jupyter notebook --debug --NotebookApp.default_url=/geppetto --NotebookApp.token=''"
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