diff --git a/.github/workflows/iso-build.yaml b/.github/workflows/iso-build.yaml
index 6464b4a2..fde0c20e 100644
--- a/.github/workflows/iso-build.yaml
+++ b/.github/workflows/iso-build.yaml
@@ -19,6 +19,10 @@ on:
     types:
       - created
 
+concurrency:
+  group: ${{ github.ref }}-${{ github.workflow }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest