diff --git a/app/models/scheduler_stat.rb b/app/models/scheduler_stat.rb
index 258a437f647..ac3aab00c68 100644
--- a/app/models/scheduler_stat.rb
+++ b/app/models/scheduler_stat.rb
@@ -1,6 +1,6 @@
 class SchedulerStat < ActiveRecord::Base
   def self.purge_old
-    where('started_at < ?', 3.months.ago).delete_all
+    where('started_at < ?', 1.months.ago).delete_all
   end
 end