diff --git a/charts/k8up-backup/templates/schedule.yaml b/charts/k8up-backup/templates/schedule.yaml
index 702ad48..f7963c5 100644
--- a/charts/k8up-backup/templates/schedule.yaml
+++ b/charts/k8up-backup/templates/schedule.yaml
@@ -21,14 +21,17 @@ spec:
     schedule: '@hourly-random'
     failedJobsHistoryLimit: 2
     successfulJobsHistoryLimit: 1
+    concurrentRunsAllowed: false
   check:
     schedule: '@daily-random'
     failedJobsHistoryLimit: 2
     successfulJobsHistoryLimit: 1
+    concurrentRunsAllowed: false    
   prune:
     schedule: '@weekly-random'
     failedJobsHistoryLimit: 2
     successfulJobsHistoryLimit: 1
+    concurrentRunsAllowed: false    
     retention:
       keepLast: 5
       keep Daily: 14