diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 5cdc5143..0f5437b7 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v7
       - uses: actions/setup-python@v7
         with:
-          python-version: "3.14"
+          python-version: "3.15"
       - run: python -m pip install --upgrade pip
       # Tests import real modules at collection time, so runtime deps are needed.
       - run: python -m pip install -r requirements-dev.txt