diff --git a/ngsw-config.json b/ngsw-config.json
index 6c8ccf4..9ebbe89 100644
--- a/ngsw-config.json
+++ b/ngsw-config.json
@@ -1,6 +1,7 @@
 {
   "$schema": "./node_modules/@angular/service-worker/config/schema.json",
   "index": "/index.html",
+  "navigationRequestStrategy": "freshness",
   "assetGroups": [
     {
       "name": "app",
diff --git a/package.json b/package.json
index 729f143..341a816 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "WorkTime",
-  "version": "0.3.3",
+  "version": "0.3.4",
   "author": "Ionic Framework",
   "homepage": "https://ionicframework.com/",
   "scripts": {
diff --git a/src/app/app.component.ts b/src/app/app.component.ts
index 9091b3a..f972550 100644
--- a/src/app/app.component.ts
+++ b/src/app/app.component.ts
@@ -1,5 +1,6 @@
 import { Component } from '@angular/core';
-import { IonApp, IonRouterOutlet } from '@ionic/angular/standalone';
+import {AlertController, IonApp, IonRouterOutlet} from '@ionic/angular/standalone';
+import {SwUpdate} from "@angular/service-worker";
 
 @Component({
   selector: 'app-root',
@@ -9,5 +10,36 @@ import { IonApp, IonRouterOutlet } from '@ionic/angular/standalone';
 })
 export class AppComponent {
   public static currentDate: any;
-  constructor() {}
+  constructor(private updates: SwUpdate, private alerts: AlertController) {
+    if (updates.isEnabled) {
+      updates.checkForUpdate().then(async available => {
+        if (available) await this.showUpdateAlert();
+      });
+    }
+  }
+
+  private async showUpdateAlert() {
+    const alert = await this.alerts.create({
+      header: "Update verfügbar!",
+      message: 'Möchtest du das Update herunterladen?',
+      buttons: [
+        {
+          text: "Nein",
+          role: "cancel"
+        },
+        {
+          text: "Ja",
+          role: "destructive"
+        }
+      ]
+    });
+
+    await alert.present();
+    const result = await alert.onDidDismiss();
+
+    if (result.role == "destructive") {
+      await this.updates.activateUpdate();
+      document.location.reload();
+    }
+  }
 }