diff --git a/.github/workflows/documentation.yaml b/.github/workflows/documentation.yaml
index c7b3655..dd4ecce 100644
--- a/.github/workflows/documentation.yaml
+++ b/.github/workflows/documentation.yaml
@@ -10,7 +10,7 @@ jobs:
       - uses: actions/setup-python@v3
       - name: Install dependencies
         run: |
-          pip install sphinx sphinx_rtd_theme
+          pip install sphinx sphinx_rtd_theme sphinxcontrib-bibtex
       - name: Sphinx build
         run: |
           sphinx-build doc _build