diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 42ecfdf..a9736a5 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -11,7 +11,7 @@ jobs:
   test:
     strategy:
       matrix:
-        python-version: [pypy3, 3.8, 3.9, "3.10", "3.11". "3.12"]
+        python-version: ["pypy3", "3.8", "3.9", "3.10", "3.11", "3.12"]
 
     runs-on: ubuntu-latest
     steps: