diff --git a/db/migrate/20141102191902_create_key_pair.rb b/db/migrate/20141102191902_create_key_pair.rb
index a4a44a9f5f..ca70bdc8c8 100644
--- a/db/migrate/20141102191902_create_key_pair.rb
+++ b/db/migrate/20141102191902_create_key_pair.rb
@@ -1,4 +1,4 @@
-class CreateKeyPair < ActiveRecord::Migration
+class CreateKeyPair < ActiveRecord::Migration[5.1]
   def up
     create_table :key_pairs,  :primary_key => :key do |t|
         t.string :value