diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8bf7869..7c0c907 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,4 +16,4 @@ jobs:
       - uses: ./.github/actions/base
       - run: pnpm build
       - run: pnpm lint
-      - run: pnpm run test --concurrency=2
+      - run: pnpm run test --concurrency=1