diff --git a/blackdynamite/Dockerfile b/blackdynamite/Dockerfile
index 47a1c4d..d572af1 100644
--- a/blackdynamite/Dockerfile
+++ b/blackdynamite/Dockerfile
@@ -1,50 +1,49 @@
 # For finding latest versions of the base image see
 # https://github.com/SwissDataScienceCenter/renkulab-docker
 ARG RENKU_BASE_IMAGE=renku/renkulab-py:3.9-0.12.0
 FROM ${RENKU_BASE_IMAGE}
 
 # Uncomment and adapt if code is to be included in the image
 # COPY src /code/src
 
 # Uncomment and adapt if your R or python packages require extra linux (ubuntu) software
 # e.g. the following installs apt-utils and vim; each pkg on its own line, all lines
 # except for the last end with backslash '\' to continue the RUN line
 #
 # USER root
 # RUN apt-get update && \
 #    apt-get install -y --no-install-recommends \
 #    apt-utils \
 #    vim
 # USER ${NB_USER}
 
 # install the python dependencies
-COPY requirements.txt environment.yml /tmp/
-RUN conda env update -q -f /tmp/environment.yml && \
-    /opt/conda/bin/pip install -r /tmp/requirements.txt && \
+COPY requirements.txt /tmp/
+RUN /opt/conda/bin/pip install -r /tmp/requirements.txt && \
     conda clean -y --all && \
     conda env export -n "root"
 
 # RENKU_VERSION determines the version of the renku CLI
 # that will be used in this image. To find the latest version,
 # visit https://pypi.org/project/renku/#history.
 ARG RENKU_VERSION={{ __renku_version__ | default("1.6.0") }}
 
 ########################################################
 # Do not edit this section and do not add anything below
 
 # Install renku from pypi or from github if it's a dev version
 RUN if [ -n "$RENKU_VERSION" ] ; then \
         source .renku/venv/bin/activate ; \
         currentversion=$(renku --version) ; \
         if [ "$RENKU_VERSION" != "$currentversion" ] ; then \
             pip uninstall renku -y ; \
             gitversion=$(echo "$RENKU_VERSION" | sed -n "s/^[[:digit:]]\+\.[[:digit:]]\+\.[[:digit:]]\+\(rc[[:digit:]]\+\)*\(\.dev[[:digit:]]\+\)*\(+g\([a-f0-9]\+\)\)*\(+dirty\)*$/\4/p") ; \
             if [ -n "$gitversion" ] ; then \
                 pip install --force "git+https://github.com/SwissDataScienceCenter/renku-python.git@$gitversion" ;\
             else \
                 pip install --force renku==${RENKU_VERSION} ;\
             fi \
         fi \
     fi
 
 ########################################################