diff --git a/app/models/specified_domain.rb b/app/models/specified_domain.rb
index d7e2ef115ef91a..0b4aacb9af2414 100644
--- a/app/models/specified_domain.rb
+++ b/app/models/specified_domain.rb
@@ -21,7 +21,7 @@ class SpecifiedDomain < ApplicationRecord
 
   class << self
     def white_list_domain_caches
-      Rails.cache.fetch('specified_domains:white_list') { white_list_domains.to_a }
+      Rails.cache.fetch('specified_domains:white_list') { white_list_domains.order(:domain).to_a }
     end
 
     def save_from_hashes(rows, type, caches)