diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2d3b60aa..6f33e90e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -28,7 +28,14 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-24.04"]
-        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        python-version: [
+          '3.10',
+          '3.11',
+          '3.12',
+          '3.13',
+          '3.14',
+          '3.15-dev',
+        ]
 
         # To save resources, only verify other variants particularly.
         include: