diff --git a/db/migrate/20180410000001_cleanup_user_preferences_notification_sound2.rb b/db/migrate/20180410000001_cleanup_user_preferences_notification_sound2.rb
index f71b3fe2b..208e6dd86 100644
--- a/db/migrate/20180410000001_cleanup_user_preferences_notification_sound2.rb
+++ b/db/migrate/20180410000001_cleanup_user_preferences_notification_sound2.rb
@@ -52,7 +52,7 @@ class CleanupUserPreferencesNotificationSound2 < ActiveRecord::Migration[5.1]
       end
     end
 
-    Delayed::Job.all.each do |job|
+    Delayed::Job.limit(2_000).each do |job|
       Delayed::Worker.new.run(job)
     end
   end