diff --git a/db/migrate/20181129203927_devise_create_users.rb b/db/migrate/20181129203927_devise_create_users.rb
index c761b6b..790e80b 100644
--- a/db/migrate/20181129203927_devise_create_users.rb
+++ b/db/migrate/20181129203927_devise_create_users.rb
@@ -108,8 +108,12 @@ class DeviseCreateUsers < ActiveRecord::Migration[5.2]
 
     create_table :account_roles do |t|
       t.timestamps null: false
+
       t.references :account, null: false
-      t.references :role, null: false
+      t.references :role,    null: false
+
+      t.datetime :deleted_at
+      t.datetime :expires_at
 
       t.index %i[account_id role_id], unique: true
     end
diff --git a/db/migrate/20190202041009_add_deleted_at_to_account_roles.rb b/db/migrate/20190202041009_add_deleted_at_to_account_roles.rb
deleted file mode 100644
index f00d1b0..0000000
--- a/db/migrate/20190202041009_add_deleted_at_to_account_roles.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# frozen_string_literal: true
-
-class AddDeletedAtToAccountRoles < ActiveRecord::Migration[6.0]
-  def change
-    add_column :account_roles, :deleted_at, :datetime
-  end
-end
diff --git a/db/migrate/20190208062215_add_expires_at_to_account_roles.rb b/db/migrate/20190208062215_add_expires_at_to_account_roles.rb
deleted file mode 100644
index d24fc4b..0000000
--- a/db/migrate/20190208062215_add_expires_at_to_account_roles.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-# frozen_string_literal: true
-
-class AddExpiresAtToAccountRoles < ActiveRecord::Migration[6.0]
-  def change
-    add_column :account_roles, :expires_at, :datetime
-  end
-end
diff --git a/db/structure.sql b/db/structure.sql
index 2bc181e..cdec7c7 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -1140,8 +1140,6 @@ SET search_path TO "$user", public;
 INSERT INTO "schema_migrations" (version) VALUES
 ('20181129203927'),
 ('20181130024918'),
-('20190202041009'),
-('20190208062215'),
 ('20190324204513'),
 ('20190324210722'),
 ('20190324211036'),