diff --git a/config/environments/production.rb b/config/environments/production.rb
index e14ce49..bf18738 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -148,6 +148,7 @@ Rails.application.configure do
   config.action_mailer.default_options = { from: ENV['DEFAULT_FROM'] }
 
   config.middleware.use ExceptionNotification::Rack,
+                        error_grouping: true,
                         email: {
                           email_prefix: '[ERROR] ',
                           sender_address: ENV['DEFAULT_FROM'],