diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index b3746c8..ae772c0 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -6,6 +6,9 @@ on:
   push:
     branches:
       - "main"
+concurrency:
+  group: build-runner-images
+  cancel-in-progress: true
 
 jobs:
   base: