diff --git a/.github/workflows/multiservice-discovery-diff.yaml b/.github/workflows/multiservice-discovery-diff.yaml
index 59c2b18b4..0b14f72eb 100644
--- a/.github/workflows/multiservice-discovery-diff.yaml
+++ b/.github/workflows/multiservice-discovery-diff.yaml
@@ -6,6 +6,11 @@ on:
       - "main"
     paths:
       - 'rs/ic-observability/multiservice-discovery*/src/**'
+
+concurrency: 
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+  
 jobs:
   msd-diff:
     runs-on: ubuntu-20.04