diff --git a/app/controllers/concerns/document_search.rb b/app/controllers/concerns/document_search.rb
index 8e3a7d5..f490049 100644
--- a/app/controllers/concerns/document_search.rb
+++ b/app/controllers/concerns/document_search.rb
@@ -20,8 +20,8 @@ module DocumentSearch
 
       if search_params[:sort_by].blank?
         order_by :search_year, :desc
-        order_by :reference_number, :desc
         order_by :search_doc_date, :desc
+        order_by :reference_number, :desc
       end
 
       paginate page: search_params[:page] || 1, per_page: search_params[:per_page] || 20
diff --git a/app/controllers/concerns/jurisprudence_search.rb b/app/controllers/concerns/jurisprudence_search.rb
index 088d38f..8f5101e 100644
--- a/app/controllers/concerns/jurisprudence_search.rb
+++ b/app/controllers/concerns/jurisprudence_search.rb
@@ -28,8 +28,8 @@ module JurisprudenceSearch
 
       if search_params[:sort_by].blank?
         order_by :search_year, :desc
-        order_by :reference_number, :desc
         order_by :search_doc_date, :desc
+        order_by :reference_number, :desc
       end
       
       paginate page: search_params[:page] || 1, per_page: search_params[:per_page] || 20