diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index bf73377..a83589d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.10, 3.11, 3.12, 3.13]
+        python-version: ['3.10', '3.11', '3.12', '3.13']
 
     steps:
       - name: Checkout code