diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e48f7f3..8d5e22c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -51,7 +51,7 @@ jobs:
         uses: ./.github/actions/setup-python-env
         with:
           python-version: ${{ matrix.python-version }}
-          resolution: "highest"
+          resolution: "lowest-direct"
 
       - name: Run Python unit tests
         run: uv run python -m pytest tests --cov --cov-config=pyproject.toml --cov-report=xml --verbose