diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5255d2cf9..5e0c22d8a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -44,6 +44,10 @@ jobs:
           grep -q "OpenIDM ready" openidm/logs/openidm0.log.0
           ! grep "ERROR"  openidm/logs/openidm0.log.0
           ! grep "SEVERE" openidm/logs/openidm0.log.0
+          echo "Running openidm-ui-admin QUnit tests in headless browser..."
+          (cd openidm-ui/openidm-ui-admin && npx grunt qunit)
+          echo "Running openidm-ui-enduser QUnit tests in headless browser..."
+          (cd openidm-ui/openidm-ui-enduser && npx grunt qunit)
       - name: Test on Windows
         if: runner.os == 'Windows'
         run: |
@@ -55,6 +59,12 @@ jobs:
           findstr "OpenIDM ready" logs\openidm0.log.0
           type logs\openidm0.log.0 | find /c '"ERROR"'  | findstr "0"
           type logs\openidm0.log.0 | find /c '"SEVERE"' | findstr "0"
+          Write-Host "Running openidm-ui-admin QUnit tests in headless browser..."
+          Push-Location ..\openidm-ui\openidm-ui-admin
+          try { npx grunt qunit } finally { Pop-Location }
+          Write-Host "Running openidm-ui-enduser QUnit tests in headless browser..."
+          Push-Location ..\openidm-ui\openidm-ui-enduser
+          try { npx grunt qunit } finally { Pop-Location }
       - name: Upload failure artifacts
         uses: actions/upload-artifact@v7
         if: ${{ failure() }}