diff --git a/activerecord/lib/active_record/insert_all.rb b/activerecord/lib/active_record/insert_all.rb
index 13cd173d84..97c440cd9c 100644
--- a/activerecord/lib/active_record/insert_all.rb
+++ b/activerecord/lib/active_record/insert_all.rb
@@ -169,7 +169,7 @@ module ActiveRecord
         end
 
         def touch_model_timestamps_unless(&block)
-          model.send(:timestamp_attributes_for_update_in_model).map do |column_name|
+          model.timestamp_attributes_for_update_in_model.map do |column_name|
             if touch_timestamp_attribute?(column_name)
               "#{column_name}=(CASE WHEN (#{updatable_columns.map(&block).join(" AND ")}) THEN #{model.quoted_table_name}.#{column_name} ELSE CURRENT_TIMESTAMP END),"
             end