diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6e0fa16..f650da6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,7 +45,7 @@ jobs:
         with:
           # Floor of requires-python = ">=3.10" (pyproject.toml) — pinning the
           # floor verifies the declared minimum actually parses and builds.
-          python-version: '3.10'
+          python-version: '3.15'
 
       - name: Byte-compile all Python sources
         run: python -m compileall -q .