diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0c8a05c..ac3250d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
-          python-version: "3.12"
+          python-version: "3.11"
           cache: "pip"
       - run: pip install -e ".[dev]"
       - run: ruff check src/ tests/