diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 0772402..146fcde 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -13,6 +13,7 @@ jobs:
       - uses: actions/setup-python@v3
       - name: Install dependencies
         run: |
+          pip install -r requirements.txt
           pip install sphinx furo sphinx-changelog 
       - name: Sphinx build
         run: |