diff --git a/environment.rb b/environment.rb
index a41cc725..41aca134 100644
--- a/environment.rb
+++ b/environment.rb
@@ -89,6 +89,7 @@ Sequel.extension :migration
 Sequel::Model.plugin :validation_helpers
 Sequel::Model.plugin :force_encoding, 'UTF-8'
 Sequel::Model.plugin :defaults_setter
+Sequel::Model.plugin :timestamps, create: :created_at, update: :updated_at
 Sequel.default_timezone = 'UTC'
 Sequel::Migrator.apply DB, './migrations'