diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 04772e7f925..a56b84105ca 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -5,7 +5,8 @@ on:
     branches:
       - main
   workflow_dispatch:
-
+concurrency:
+  group: ${{ github.event.number }}
 jobs:
   build-carbon:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/ui-test.yml b/.github/workflows/ui-test.yml
index 9a12599f967..55c2979c2dc 100644
--- a/.github/workflows/ui-test.yml
+++ b/.github/workflows/ui-test.yml
@@ -8,7 +8,8 @@ on:
     branches:
       - main
   workflow_dispatch:
-
+concurrency:
+  group: ${{ github.event.number }}
 jobs:
   build-product:
     runs-on: ubuntu-latest