diff --git a/.github/workflows/SHiELD_parallelworks_intel.yml b/.github/workflows/SHiELD_parallelworks_intel.yml
index 45fb596ff..b730e5714 100644
--- a/.github/workflows/SHiELD_parallelworks_intel.yml
+++ b/.github/workflows/SHiELD_parallelworks_intel.yml
@@ -16,6 +16,10 @@ on:
   # run weekly on Sunday
   schedule:
     - cron: '0 0 * * 0'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
     
 jobs:
   checkout: