diff --git a/.github/workflows/nextflow_CI.yml b/.github/workflows/nextflow_CI.yml
index d5ca39b..f775bf1 100644
--- a/.github/workflows/nextflow_CI.yml
+++ b/.github/workflows/nextflow_CI.yml
@@ -4,6 +4,9 @@ on:
   push:
     branches:
       - development
+  pull_request:
+    branches:
+      - master
 
 jobs:
   test_sarscov2_user:
@@ -35,3 +38,12 @@ jobs:
       - name: Run pipeline test (reference)
         run: |
           nextflow run main.nf -profile docker --prefix "covidmvp-$(date +%Y-%m-%d)" --end_date $(date +%Y-%m-%d) -params-file covidmvp_clinical_params.yaml
+
+  check_success:
+    name: Check if all tests passed
+    needs: [test_sarscov2_user, test_sarscov2_reference]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check job status
+        if: ${{ failure() }}
+        run: exit 1