diff --git a/.github/workflows/pytest.yaml b/.github/workflows/pytest.yaml
index e5ee54a9..67e9fa2b 100644
--- a/.github/workflows/pytest.yaml
+++ b/.github/workflows/pytest.yaml
@@ -13,3 +13,4 @@ jobs:
       os_list: '["ubuntu-latest"]'
       python-version: "['3.10','3.11']"
       extra_commands: echo "HF_TOKEN=${{ vars.HF_TOKEN }}" > .env
+      pytest_numcpus: '1'