diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 24963ec2..5f67a981 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,5 +1,9 @@
 name: build
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ github.ref != 'refs/heads/main'}}
+
 on:
   push: