diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 885f2a32267882160943c6fe20f5b199c244de25..a7f0721851686686ec8819606c4d14297ff61bc4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -37,6 +37,8 @@ build_and_deploy_docs:
         - tests
     before_script:
         - pip install awscli
+        - apt update
+        - apt install -y graphviz libgl1-mesa-glx xvfb xdg-utils
     script:
         - pip install -r requirements_dev.txt
         - python setup.py install