diff --git a/.gitea/workflows/image-only.yml b/.gitea/workflows/image-only.yml
index 1692f4e..6c91d9b 100644
--- a/.gitea/workflows/image-only.yml
+++ b/.gitea/workflows/image-only.yml
@@ -20,6 +20,13 @@ on:
       - "Dockerfile"
       - "sources.json"
 
+# If multiple pushes land in quick succession, cancel the older one
+# rather than queueing both — each run is ~90 min and the older
+# commit's image just gets overwritten by the newer one anyway.
+concurrency:
+  group: image-only
+  cancel-in-progress: true
+
 env:
   REGISTRY_PUSH: 192.168.0.2:1234
   REGISTRY_PULL: git.jpaul.io