diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index ca04bd3..2a8facc 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -38,7 +38,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.10]
+        python-version: ['3.10']
 
     steps:
     - uses: actions/checkout@v2