diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 2c58b8b..b717728 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -19,7 +19,7 @@ jobs:
           fetch-depth: 0 # fetch all commits/branches
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.10
+          python-version: "3.10"
       - uses: actions/cache@v3
         name: "Cache Python dependencies (mkdocs-material and mike)"
         with: