diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index c36ff666d4c..4ad0e0822ad 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -10,6 +10,10 @@ on:
     paths:
       - 'srcpkgs/**'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   # Lint changed templates.
   xlint: