diff --git a/.github/workflows/techdocs.yml b/.github/workflows/techdocs.yml
index ccc9178724..d0c57f6fd6 100644
--- a/.github/workflows/techdocs.yml
+++ b/.github/workflows/techdocs.yml
@@ -24,5 +24,5 @@ jobs:
       - name: lint techdocs-core package
         working-directory: ./plugins/techdocs/mkdocs/container/techdocs-core
         run: |
-          pip install --registry https://pypi.org/simple/ -r requirements.txt
+          pip install --index-url https://pypi.org/simple/ -r requirements.txt
           python -m black --check src/