db/migrate/20141114191059_add_hstore.rb in cavy-0.1.0.beta1 vs db/migrate/20141114191059_add_hstore.rb in cavy-0.1.0.beta2

@@ -1,5 +1,5 @@
-class AddHstore < ActiveRecord::Migration
+class AddHstore < ActiveRecord::Migration[4.2]
   def up
     execute 'CREATE EXTENSION hstore'
   end
 
   def down