diff --git a/Dockerfile b/Dockerfile
index 44aa199..ec61065 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,7 +25,6 @@ ENV WEBPUSH__PRIVATEKEY=
 
 COPY src/server/host/bin/Release/publish .
 COPY src/client/dist/minigolf-friday/browser ./wwwroot/
-RUN sed -i "s/\$VERSION/$BUILDTIME/g" wwwroot/index.html
 
 HEALTHCHECK CMD wget --no-verbose --tries=1 --spider http://localhost/healthz || exit 1
 
diff --git a/package.json b/package.json
index 9f6ede1..a9b45a2 100644
--- a/package.json
+++ b/package.json
@@ -15,5 +15,8 @@
     "docker:build:inttest": "node src/scripts/docker-build-inttest.js",
     "docker:push": "node src/scripts/docker-push.js",
     "test:integration": "dotnet test test/MinigolfFriday.IntegrationTests/MinigolfFriday.IntegrationTests.csproj"
+  },
+  "devDependencies": {
+    "@types/node": "^20.14.10"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9b60ae1..4575986 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -6,4 +6,24 @@ settings:
 
 importers:
 
-  .: {}
+  .:
+    devDependencies:
+      '@types/node':
+        specifier: ^20.14.10
+        version: 20.14.10
+
+packages:
+
+  '@types/node@20.14.10':
+    resolution: {integrity: sha512-MdiXf+nDuMvY0gJKxyfZ7/6UFsETO7mGKF54MVD/ekJS6HdFtpZFBgrh6Pseu64XTb2MLyFPlbW6hj8HYRQNOQ==}
+
+  undici-types@5.26.5:
+    resolution: {integrity: sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==}
+
+snapshots:
+
+  '@types/node@20.14.10':
+    dependencies:
+      undici-types: 5.26.5
+
+  undici-types@5.26.5: {}
diff --git a/src/client/pnpm-lock.yaml b/src/client/pnpm-lock.yaml
index 7f0348f..6be4ced 100644
--- a/src/client/pnpm-lock.yaml
+++ b/src/client/pnpm-lock.yaml
@@ -3402,10 +3402,6 @@ packages:
     engines: {node: '>=12'}
     hasBin: true
 
-  escalade@3.1.1:
-    resolution: {integrity: sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==}
-    engines: {node: '>=6'}
-
   escalade@3.1.2:
     resolution: {integrity: sha512-ErCHMCae19vR8vQGe50xIsVomy19rg6gFu3+r3jkEO46suLMWBksvVyoGgQV+jOfl84ZSOSlmv6Gxa89PmTGmA==}
     engines: {node: '>=6'}
@@ -9983,8 +9979,6 @@ snapshots:
       '@esbuild/win32-ia32': 0.21.3
       '@esbuild/win32-x64': 0.21.3
 
-  escalade@3.1.1: {}
-
   escalade@3.1.2: {}
 
   escape-html@1.0.3: {}
@@ -13003,7 +12997,7 @@ snapshots:
   update-browserslist-db@1.0.13(browserslist@4.22.3):
     dependencies:
       browserslist: 4.22.3
-      escalade: 3.1.1
+      escalade: 3.1.2
       picocolors: 1.0.0
 
   update-browserslist-db@1.0.16(browserslist@4.23.1):
diff --git a/src/client/src/app/components/player-events/player-events.component.html b/src/client/src/app/components/player-events/player-events.component.html
index 4aecf8b..d031cd4 100644
--- a/src/client/src/app/components/player-events/player-events.component.html
+++ b/src/client/src/app/components/player-events/player-events.component.html
@@ -14,7 +14,7 @@ <h1>{{ translations.playerEvents_greetings() | interpolate: { name: user.alias }
       >
     </ng-template>
   </p-messages>
-} @else {
+} @else if (user()?.roles?.includes('player')) {
   <div class="flex h-full w-full max-w-[40rem] flex-col gap-4 overflow-auto pb-4">
     <h2 class="m-0">{{ translations.playerEvents_currentEvents() }}</h2>
     <div class="rounded-lg border-[1px] border-solid border-surface-d bg-surface-a">
diff --git a/src/client/src/app/components/player-events/player-events.component.ts b/src/client/src/app/components/player-events/player-events.component.ts
index a8c521a..a634963 100644
--- a/src/client/src/app/components/player-events/player-events.component.ts
+++ b/src/client/src/app/components/player-events/player-events.component.ts
@@ -2,7 +2,6 @@ import { CommonModule } from '@angular/common';
 import { ChangeDetectionStrategy, Component, computed, inject } from '@angular/core';
 import { toSignal } from '@angular/core/rxjs-interop';
 import { RouterLink } from '@angular/router';
-import { Store } from '@ngrx/store';
 import { MessagesModule } from 'primeng/messages';
 import { ProgressSpinnerModule } from 'primeng/progressspinner';
 import { map, timer } from 'rxjs';
@@ -28,7 +27,6 @@ const dayMillis = 24 * 60 * 60 * 1000;
   changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class PlayerEventsComponent {
-  private readonly _store = inject(Store);
   private readonly _translateService = inject(TranslateService);
 
   protected readonly translations = this._translateService.translations;
diff --git a/src/client/src/app/environments/environment.prod.ts b/src/client/src/app/environments/environment.prod.ts
index 9d28b5f..7e91643 100644
--- a/src/client/src/app/environments/environment.prod.ts
+++ b/src/client/src/app/environments/environment.prod.ts
@@ -1,9 +1,7 @@
 import { Environment } from './environment.type';
 
-const minigolfFriday: { version: string } = (window as any).minigolfFriday;
-
 export const environment: Environment = {
   getProviders: () => [],
   authenticationRequired: true,
-  ...minigolfFriday,
+  version: (document.head.querySelector('meta[name="version"]') as HTMLMetaElement)?.content ?? '',
 };
diff --git a/src/client/src/app/services/update.service.ts b/src/client/src/app/services/update.service.ts
index 1d0530f..489b912 100644
--- a/src/client/src/app/services/update.service.ts
+++ b/src/client/src/app/services/update.service.ts
@@ -1,7 +1,7 @@
 import { inject, Injectable } from '@angular/core';
 import { toSignal } from '@angular/core/rxjs-interop';
 import { SwUpdate } from '@angular/service-worker';
-import { merge, filter, map } from 'rxjs';
+import { merge, filter, map, debounceTime } from 'rxjs';
 
 import { RealtimeEventsService } from './realtime-events.service';
 import { onDocumentVisibilityChange$ } from '../utils/event.utils';
@@ -24,10 +24,12 @@ export class UpdateService {
       merge(
         onDocumentVisibilityChange$().pipe(filter(isVisible => isVisible)),
         this._realtimeEventsService.onReconnected$
-      ).subscribe(() => {
-        console.info('Checking for updates...');
-        this._swUpdate.checkForUpdate().then(x => console.info('Update check result:', x));
-      });
+      )
+        .pipe(debounceTime(1000))
+        .subscribe(() => {
+          console.info('Checking for updates...');
+          this._swUpdate.checkForUpdate().then(x => console.info('Update check result:', x));
+        });
       this._swUpdate.unrecoverable.subscribe(() => location.reload());
     }
   }
diff --git a/src/client/src/index.html b/src/client/src/index.html
index c8a3a6d..42af4a4 100644
--- a/src/client/src/index.html
+++ b/src/client/src/index.html
@@ -9,6 +9,7 @@
       content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, viewport-fit=cover"
     />
     <link rel="manifest" href="manifest.webmanifest" />
+    <meta name="version" content="" />
 
     <!-- Android  -->
     <meta name="mobile-web-app-capable" content="yes" />
@@ -40,10 +41,6 @@
       if (theme === 'dark') {
         document.body.classList.add('dark');
       }
-
-      window.minigolfFriday = {
-        version: '$VERSION',
-      };
     </script>
     <app-root></app-root>
     <noscript>Please enable JavaScript to continue using this application.</noscript>
diff --git a/src/scripts/add-migration.js b/src/scripts/add-migration.js
index ba9e0ac..de4e624 100644
--- a/src/scripts/add-migration.js
+++ b/src/scripts/add-migration.js
@@ -1,6 +1,6 @@
 import { spawnSync } from "child_process";
 import { argv } from "process";
-import { repoRootDir } from "./vars.js";
+import { repoRootDir } from "./utils.js";
 import path from "path";
 
 const name = argv[2];
diff --git a/src/scripts/docker-build-inttest.js b/src/scripts/docker-build-inttest.js
index 1594848..0971d75 100644
--- a/src/scripts/docker-build-inttest.js
+++ b/src/scripts/docker-build-inttest.js
@@ -1,5 +1,5 @@
 import { spawnSync } from "child_process";
-import { repository, imageName, repoRootDir, getArg, getVersionTag } from "./vars.js";
+import { repository, imageName, repoRootDir, getArg, getVersionTag } from "./utils.js";
 
 const configuration = getArg("--configuration", "-c") ?? "Release";
 
diff --git a/src/scripts/docker-build.js b/src/scripts/docker-build.js
index 3af0272..962ddb3 100644
--- a/src/scripts/docker-build.js
+++ b/src/scripts/docker-build.js
@@ -1,15 +1,20 @@
 import { spawnSync } from "child_process";
-import { repository, imageName, repoRootDir, getVersionTag } from "./vars.js";
+import { repository, imageName, repoRootDir, getVersionTag, setIndexHtmlVersion } from "./utils.js";
 
-const buildtime = getVersionTag();
-spawnSync(
-  "docker",
-  [
-    "build",
-    `-t=${repository}/${imageName}:latest`,
-    `-t=${repository}/${imageName}:${buildtime}`,
-    `--build-arg=BUILDTIME=${buildtime}`,
-    ".",
-  ],
-  { cwd: repoRootDir, stdio: "inherit" }
-);
+(async () => {
+  const buildtime = getVersionTag();
+
+  await setIndexHtmlVersion("src/client/dist/minigolf-friday/browser", buildtime);
+
+  spawnSync(
+    "docker",
+    [
+      "build",
+      `-t=${repository}/${imageName}:latest`,
+      `-t=${repository}/${imageName}:${buildtime}`,
+      `--build-arg=BUILDTIME=${buildtime}`,
+      ".",
+    ],
+    { cwd: repoRootDir, stdio: "inherit" }
+  );
+})();
diff --git a/src/scripts/docker-push.js b/src/scripts/docker-push.js
index d4dfb60..97d1084 100644
--- a/src/scripts/docker-push.js
+++ b/src/scripts/docker-push.js
@@ -1,5 +1,5 @@
 import { spawnSync } from "child_process";
-import { repository, imageName, repoRootDir, getVersionTag } from "./vars.js";
+import { repository, imageName, repoRootDir, getVersionTag } from "./utils.js";
 import { appendFileSync } from "fs";
 
 const inspectResult = spawnSync(
diff --git a/src/scripts/remove-migration.js b/src/scripts/remove-migration.js
index 75f0e63..e5576e3 100644
--- a/src/scripts/remove-migration.js
+++ b/src/scripts/remove-migration.js
@@ -1,6 +1,5 @@
 import { spawnSync } from "child_process";
-import { argv } from "process";
-import { repoRootDir } from "./vars.js";
+import { repoRootDir } from "./utils.js";
 import path from "path";
 
 const buildResult = spawnSync("dotnet", ["build"], {
diff --git a/src/scripts/utils.js b/src/scripts/utils.js
new file mode 100644
index 0000000..6346a91
--- /dev/null
+++ b/src/scripts/utils.js
@@ -0,0 +1,83 @@
+import crypt from "crypto";
+import fs from "fs";
+import path from "path";
+import { fileURLToPath } from "url";
+import { argv } from "process";
+
+export const repoRootDir = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "../..");
+export const imageName = "minigolf-friday";
+export const repository = "masch0212";
+
+export function getVersionTag() {
+  const dateIso = new Date().toISOString();
+  return dateIso.replace(/[-T:.Z]/g, (x) => (x === "T" ? "-" : "")).substring(0, 15);
+}
+
+export function getArg(longName, shortName) {
+  const longIndex = argv.indexOf(longName);
+  if (longIndex > -1) {
+    return argv[longIndex + 1];
+  }
+  const shortIndex = argv.indexOf(shortName);
+  if (shortIndex > -1) {
+    return argv[shortIndex + 1];
+  }
+  return null;
+}
+
+export async function setIndexHtmlVersion(distDir, version) {
+  const indexHtmlPath = path.resolve(distDir, "index.html");
+  if (!fs.existsSync(indexHtmlPath)) {
+    throw new Error(`File ${indexHtmlPath} not found`);
+  }
+
+  let indexHtml = fs.readFileSync(indexHtmlPath, "utf8");
+  indexHtml = indexHtml.replace(
+    /<meta name="version" content(="[^"]*")?\s*(\/)?>/,
+    `<meta name="version" content="${version}" \/>`
+  );
+  fs.writeFileSync(indexHtmlPath, indexHtml);
+  await rebuildNgswFileHash(distDir, "/index.html");
+}
+
+function rebuildNgswFileHash(distDir, file) {
+  const ngswPath = path.resolve(distDir, "ngsw.json");
+  if (!fs.existsSync(ngswPath)) {
+    console.error(`File ${ngswPath} not found`);
+    process.exit(1);
+  }
+
+  const ngsw = JSON.parse(fs.readFileSync(ngswPath, "utf8"));
+  if (!ngsw.hashTable[file]) {
+    console.error(`File ${file} not found in ngsw.json`);
+    process.exit(1);
+  }
+
+  const filePath = path.resolve(distDir, file.replace(/^\//, ""));
+  if (!fs.existsSync(filePath)) {
+    console.error(`File ${filePath} not found`);
+    process.exit(1);
+  }
+
+  const fd = fs.createReadStream(filePath);
+  const hash = crypt.createHash("sha1");
+  hash.setEncoding("hex");
+
+  return new Promise((resolve, reject) => {
+    fd.on("end", () => {
+      hash.end();
+
+      try {
+        console.log(`Old hash for ${file}: ${ngsw.hashTable[file]}`);
+        ngsw.hashTable[file] = hash.read();
+        console.log(`New hash for ${file}: ${ngsw.hashTable[file]}`);
+        fs.writeFileSync(ngswPath, JSON.stringify(ngsw, null, 2));
+        resolve();
+      } catch (error) {
+        reject(error);
+      }
+    });
+
+    fd.pipe(hash);
+  });
+}
diff --git a/src/scripts/vars.js b/src/scripts/vars.js
deleted file mode 100644
index 2a4ab49..0000000
--- a/src/scripts/vars.js
+++ /dev/null
@@ -1,24 +0,0 @@
-import path from "path";
-import { fileURLToPath } from "url";
-import { argv } from "process";
-
-export const repoRootDir = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "../..");
-export const imageName = "minigolf-friday";
-export const repository = "masch0212";
-
-export function getVersionTag() {
-  const dateIso = new Date().toISOString();
-  return dateIso.replace(/[-T:.Z]/g, (x) => (x === "T" ? "-" : "")).substring(0, 15);
-}
-
-export function getArg(longName, shortName) {
-  const longIndex = argv.indexOf(longName);
-  if (longIndex > -1) {
-    return argv[longIndex + 1];
-  }
-  const shortIndex = argv.indexOf(shortName);
-  if (shortIndex > -1) {
-    return argv[shortIndex + 1];
-  }
-  return null;
-}