diff --git a/.github/workflows/master-docs.yml b/.github/workflows/master-docs.yml
index 6f61848..b98c058 100644
--- a/.github/workflows/master-docs.yml
+++ b/.github/workflows/master-docs.yml
@@ -28,4 +28,4 @@ jobs:
           restore-keys: |
             mkdocs-material-
       - run: pip install '.[dev,e2e,cli]'
-      - run: mike deploy -p -u {{ github.ref_name }}
+      - run: mike deploy -p -u ${{ github.ref_name }}