diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index ce1a9f42b27..2f2e7bdf10c 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Generate Documentation
         run: |
           cd Documentation/
-          pip3 install pipenv
+          pip3 install pipenv==2021.5.29
           pipenv install
           pipenv run make html
       - uses: actions/upload-artifact@v2