diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 845db7e162..c30f95eb87 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,13 +18,13 @@ jobs:
     name: Tests
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.10]
+        python-version: ["3.7", "3.8", "3.10"]
         database: [sqlite, postgres, mysql]
         exclude:
           - database: mysql
             python-version: 3.8
           - database: mysql
-            python-version: 3.10
+            python-version: "3.10"
           - database: sqlite
             python-version: 3.7
           - database: sqlite