diff --git a/app/workers/cron/clear_old_gitea_pull_requests_job.rb b/app/workers/cron/clear_old_gitea_pull_requests_job.rb
index 413135b..13a4085 100644
--- a/app/workers/cron/clear_old_gitea_pull_requests_job.rb
+++ b/app/workers/cron/clear_old_gitea_pull_requests_job.rb
@@ -29,11 +29,12 @@
 #++
 
 module Cron
-  class ClearOldGiteaPullRequestsJob < CronJob
-    self.cron_expression = "25 1 * * *"
+  class ClearOldGiteaPullRequestsJob < ApplicationJob
+    priority_number :low
 
     def perform
-      GiteaPullRequest.without_work_package.destroy_all
+      GiteaPullRequest.without_work_package
+                      .find_each(&:destroy!)
     end
   end
 end
diff --git a/db/migrate/1016015_aggregated_gitea_migrations.rb b/db/migrate/1023015_aggregated_gitea_migrations.rb
similarity index 100%
rename from db/migrate/1016015_aggregated_gitea_migrations.rb
rename to db/migrate/1023015_aggregated_gitea_migrations.rb