diff --git a/app/controllers/api/v1/jobs_controller.rb b/app/controllers/api/v1/jobs_controller.rb
index d2464c55b..49ce6785d 100644
--- a/app/controllers/api/v1/jobs_controller.rb
+++ b/app/controllers/api/v1/jobs_controller.rb
@@ -102,7 +102,7 @@ class Api::V1::JobsController < Api::V1::BaseController
 
   def clear_stale_builders
     BuildList.transaction do
-      BuildList.where(["updated_at < ?", 120.seconds.ago]).where(status: BuildList::BUILD_PENDING).where.not(builder: nil).find_each(batch_size: 50) do |bl|
+      BuildList.where(["updated_at < ?", 900.seconds.ago]).where(status: BuildList::BUILD_PENDING).where.not(builder: nil).find_each(batch_size: 50) do |bl|
         bl.update_column(:builder_id, nil)
       end
     end