diff --git a/iOS/Layover/Layover/Scenes/Setting/SettingConfigurator.swift b/iOS/Layover/Layover/Scenes/Setting/SettingConfigurator.swift
index d5239d6..d7fea6d 100644
--- a/iOS/Layover/Layover/Scenes/Setting/SettingConfigurator.swift
+++ b/iOS/Layover/Layover/Scenes/Setting/SettingConfigurator.swift
@@ -25,7 +25,7 @@ final class SettingConfigurator: Configurator {
         let presenter = SettingPresenter()
         let router = SettingRouter()
         let settingWorker = SettingWorker()
-        let userWorker = MockUserWorker()
+        let userWorker = UserWorker()
 
         viewController.router = router
         viewController.interactor = interactor
diff --git a/iOS/Layover/Layover/Scenes/Setting/SettingRouter.swift b/iOS/Layover/Layover/Scenes/Setting/SettingRouter.swift
index ab71526..32a3764 100644
--- a/iOS/Layover/Layover/Scenes/Setting/SettingRouter.swift
+++ b/iOS/Layover/Layover/Scenes/Setting/SettingRouter.swift
@@ -37,9 +37,9 @@ final class SettingRouter: SettingRoutingLogic, SettingDataPassing {
     }
 
     func routeToLogin() {
-        let viewController = LoginViewController()
-        guard let rootNavigationController = viewController.view.window?.rootViewController
+        let loginViewController = LoginViewController()
+        guard let rootNavigationController = viewController?.view.window?.rootViewController
                 as? UINavigationController else { return }
-        rootNavigationController.setViewControllers([viewController], animated: true)
+        rootNavigationController.setViewControllers([loginViewController], animated: true)
     }
 }