diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3ae78986b2..0c9d553bee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
             - name: Set up Python
               uses: actions/setup-python@v3
               with:
-                python-version: 3.10
+                python-version: "3.10"
 
             - name: Install calibre dependencies
               run: