diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a2fc161..6ebea97 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,4 +28,6 @@ jobs:
       - run: pip install mkdocs-material
       - run: pip install mkdocs-git-revision-date-localized-plugin
       - run: pip install mkdocs-git-committers-plugin-2
+      - run: pip install material-extensions
+      - run: pip install pillow cairosvg
       - run: mkdocs gh-deploy --force