diff --git a/.github/workflows/openmetrics.yml b/.github/workflows/openmetrics.yml
index d5ac0667f..bec774e73 100644
--- a/.github/workflows/openmetrics.yml
+++ b/.github/workflows/openmetrics.yml
@@ -21,7 +21,7 @@ jobs:
     - name: Set up Python 3.x
       uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065  # v5.6.0
       with:
-        python-version: "3.12.3"
+        python-version: "3.15"
     - name: Install dependencies
       run: |
         pip install -r openmetrics-spec-tests/check_openmetrics_spec_requirements.txt