diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c0ed41d..26c805a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.8, 3.9, 3.10, 3.11]
+        python-version: [3.8, 3.9, '3.10', 3.11]
         os:
           - ubuntu-latest
     runs-on: ${{ matrix.os }}