diff --git a/spec/dummy/application.rb b/spec/dummy/application.rb
index 6c3a58e..491b815 100644
--- a/spec/dummy/application.rb
+++ b/spec/dummy/application.rb
@@ -23,7 +23,11 @@ class Application < Rails::Application
     config.paths['log'] = 'tmp/log/development.log'
     config.paths.add 'config/routes.rb', with: "#{APP_ROOT}/config/routes.rb"
 
-    config.active_record.sqlite3.represent_boolean_as_integer = true
+    if Rails.version.match?(/^6.0/)
+      config.active_record.sqlite3.represent_boolean_as_integer = true
+    else
+      config.active_record.legacy_connection_handling = false
+    end
 
     def require_environment!
       initialize!