diff --git a/argocd/manifests/kiwix/cronjob-zim-watcher.yaml b/argocd/manifests/kiwix/cronjob-zim-watcher.yaml
index 3532676..5de0990 100644
--- a/argocd/manifests/kiwix/cronjob-zim-watcher.yaml
+++ b/argocd/manifests/kiwix/cronjob-zim-watcher.yaml
@@ -9,6 +9,7 @@ spec:
   concurrencyPolicy: Forbid
   jobTemplate:
     spec:
+      ttlSecondsAfterFinished: 345600  # Auto-delete after 4 days
       template:
         spec:
           serviceAccountName: zim-watcher