diff --git a/config/schedule.rb b/config/schedule.rb
index df14d77c3..9d9d442b0 100644
--- a/config/schedule.rb
+++ b/config/schedule.rb
@@ -16,6 +16,6 @@ every 10.minutes do
   runner 'ZonefileSetting.generate_zonefiles'
 end
 
-every 2.minutes do
+every 6.months, at: '1am' do
   runner 'Contact.destroy_orphans'
 end