diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 664ceae8..5b7fce7d 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -21,7 +21,7 @@ jobs:
         python -m pip install --upgrade pipenv
         pipenv install --dev
     - name: Build
-      run: mkdocs build
+      run: pipenv run mkdocs build
     - name: Deploy
       uses: peaceiris/actions-gh-pages@v2.5.0
       env: