diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index 7fa7fc1e3ba287611b84d22cd969ef50655f8a8f..ca37cc176689ebd41f9af9056bfb3889f71076ac 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -30,5 +30,6 @@ COPY . /git
 RUN rm -r /git/.git \
     && mv /git/.docker/pycaosdb.ini /git/integrationtests
 RUN cd /git && pip3 install .[h5-crawler]
+RUN pip3 install jsonschema
 WORKDIR /git/integrationtests
 CMD /wait-for-it.sh caosdb-server:10443 -t 500 -- ./test.sh --force