diff --git a/app/models/dashboard.rb b/app/models/dashboard.rb
index c0eb800c..73bf864e 100644
--- a/app/models/dashboard.rb
+++ b/app/models/dashboard.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class Dashboard < ActiveRecord::Base
+class Dashboard < Rails.version < '7.1' ? ActiveRecord::Base : ApplicationRecord
   include Redmine::I18n
   include Redmine::SafeAttributes
   include Additionals::EntityMethods
diff --git a/app/models/dashboard_role.rb b/app/models/dashboard_role.rb
index 12dc520b..faf89d65 100644
--- a/app/models/dashboard_role.rb
+++ b/app/models/dashboard_role.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class DashboardRole < ActiveRecord::Base
+class DashboardRole < Rails.version < '7.1' ? ActiveRecord::Base : ApplicationRecord
   include Redmine::SafeAttributes
 
   belongs_to :dashboard