diff --git a/.github/workflows/maven-acceptance-manual.yml b/.github/workflows/maven-acceptance-manual.yml
index f0fab358..40394f18 100644
--- a/.github/workflows/maven-acceptance-manual.yml
+++ b/.github/workflows/maven-acceptance-manual.yml
@@ -19,6 +19,10 @@ on:
         description: 'comment, e.g. PR number'
         default: 'n/a'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event.inputs.lyoRepo }}-${{ github.event.inputs.lyoBranch }}
+  cancel-in-progress: false
+
 jobs:
   build:
     runs-on: [ubuntu-latest]