diff --git a/Docker/lofar-ci/Dockerfile_ci_tmss b/Docker/lofar-ci/Dockerfile_ci_tmss
index fe689e4470db094699a33cf728dbdb9c9a5e069c..c28eff373f44d7348abecfb3fbc8032aada884a3 100644
--- a/Docker/lofar-ci/Dockerfile_ci_tmss
+++ b/Docker/lofar-ci/Dockerfile_ci_tmss
@@ -18,7 +18,7 @@ RUN mkdir -p /opt/oracle && \
     unzip instantclient-basic-linux.x64-21.9.0.0.0dbru.zip
 ENV LD_LIBRARY_PATH /opt/oracle/instantclient_21_9:$LD_LIBRARY_PATH
 
-RUN pip3 install cython kombu lxml requests pygcn xmljson mysql-connector-python python-dateutil Django==3.0.9 djangorestframework==3.11.1 djangorestframework-xml flask fabric coverage python-qpid-proton numpy h5py psycopg2 testing.postgresql scipy Markdown django-filter ldap3 django-jsonforms django-json-widget django-jsoneditor drf-yasg flex swagger-spec-validator mozilla-django-oidc jsonschema comet pyxb graphviz isodate astropy astroplan packaging django-debug-toolbar pymysql SimpleWebSocketServer websocket_client drf-flex-fields django-property-filter cachetools gunicorn gevent ujson orjson matplotlib cx_Oracle django-auth-ldap django-material django-viewflow python-ldap-test
+RUN pip3 install cython kombu lxml requests pygcn xmljson mysql-connector-python python-dateutil Django==3.0.9 djangorestframework==3.11.1 djangorestframework-xml flask fabric coverage python-qpid-proton numpy h5py psycopg2 testing.postgresql scipy Markdown django-filter ldap3 django-jsonforms django-json-widget django-jsoneditor drf-yasg flex swagger-spec-validator mozilla-django-oidc jsonschema comet pyxb==1.2.5 graphviz isodate astropy astroplan packaging django-debug-toolbar pymysql SimpleWebSocketServer websocket_client drf-flex-fields django-property-filter cachetools gunicorn gevent ujson orjson matplotlib cx_Oracle django-auth-ldap django-material django-viewflow python-ldap-test
 
 # Note: nodejs now comes with npm, do not install the npm package separately, since that will be taken from the ubuntu repo and is conflicting.
 RUN echo "Installing Nodejs packages...." && \