diff --git a/.github/workflows/build-deploy-docs.yml b/.github/workflows/build-deploy-docs.yml
index 37b8451..4c92b6a 100644
--- a/.github/workflows/build-deploy-docs.yml
+++ b/.github/workflows/build-deploy-docs.yml
@@ -24,5 +24,5 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: 3.x
-      - run: pip install mkdocs-material mdx_truly_sane_lists json-schema-for-humans
+      - run: pip install mkdocs-material mdx_truly_sane_lists json-schema-for-humans mkdocs-glightbox==0.3.2 pymdown-extensions==9.1
       - run: mkdocs gh-deploy --force