diff --git a/.github/workflows/dashboard.yml b/.github/workflows/dashboard.yml
index b912fd05e..ad17be889 100644
--- a/.github/workflows/dashboard.yml
+++ b/.github/workflows/dashboard.yml
@@ -31,14 +31,13 @@ jobs:
       - name: setup python
         run: apt update && apt install -y python3-venv python-is-python3
       - name: bootstrap
+        env:
+          NODE_OPTIONS: '--max_old_space_size=4096'
         uses: ./.github/actions/bootstrap
         with:
           package: rmf-dashboard
           skip-build: true
       - name: unit test
-        env:
-          NODE_OPTIONS: '--max_old_space_size=8192'
-          GENERATE_SOURCEMAP: false
         run: . /rmf_demos_ws/install/setup.bash && pnpm run test:coverage
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v1