diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 92b1c34f817617edbe3048ab70c19b41fed4cd6a..8e3b948159af2153355f88b766302ca6e6232528 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,6 +8,7 @@ before_script:
   - python -m pip install --upgrade pip
   - pip install -U sphinx
   - pip install sphinxcontrib-svg2pdfconverter
+  - apk add librsvg
   - pip install sphinx_rtd_theme
   - apk add texlive-full
   - apk add make