diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d01aeee1..fb7b2bb9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -28,9 +28,9 @@ jobs:
         - os: ubuntu-20.04
           python-version: '3.6'
         - os: windows-2022
-          python-version: '3.11'
+          python-version: 3.12-dev
         - os: macos-11
-          python-version: '3.11'
+          python-version: 3.12-dev
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout repository