diff --git a/db/migrate/001_create_users.rb b/db/migrate/001_create_users.rb
index 357cb14..c83a667 100644
--- a/db/migrate/001_create_users.rb
+++ b/db/migrate/001_create_users.rb
@@ -1,4 +1,4 @@
-class CreateUsers < ActiveRecord::Migration
+class CreateUsers < ActiveRecord::Migration[5.1]
   def change
     create_table :users, force: true do |t|
       t.integer :uid