diff --git a/database/seeders/DemoEventSeeder.php b/database/seeders/DemoEventSeeder.php
index 7fbe4cd1..0d707e12 100644
--- a/database/seeders/DemoEventSeeder.php
+++ b/database/seeders/DemoEventSeeder.php
@@ -43,6 +43,7 @@ class DemoEventSeeder extends Seeder
                 'package' => $standardPackage,
                 'token_label' => 'Demo QR',
                 'token_value' => 'W2E3sbt7yclzpkAwNSARHYTVN1sPLBad8hfUjLVHmjkUviPd',
+                'join_token_expires_at' => Carbon::now()->addYears(20),
                 'collection_slugs' => ['wedding-classics-2025'],
                 'task_slug_prefix' => 'wedding-',
                 'branding' => [
@@ -95,7 +96,12 @@ class DemoEventSeeder extends Seeder
                 ]
             );
 
-            $this->ensureJoinToken($event, $config['token_label'], $config['token_value'] ?? null);
+            $this->ensureJoinToken(
+                $event,
+                $config['token_label'],
+                $config['token_value'] ?? null,
+                $config['join_token_expires_at'] ?? null
+            );
 
             $this->attachEventPackage(
                 event: $event,
@@ -110,7 +116,7 @@ class DemoEventSeeder extends Seeder
         }
     }
 
-    private function ensureJoinToken(Event $event, string $label, ?string $token = null): void
+    private function ensureJoinToken(Event $event, string $label, ?string $token = null, ?Carbon $expiresAt = null): void
     {
         if ($event->joinTokens()->exists()) {
             $existingToken = $event->joinTokens()->latest('id')->first();
@@ -121,6 +127,12 @@ class DemoEventSeeder extends Seeder
                     $existingToken->metadata = $metadata;
                     $existingToken->save();
                 }
+
+                if ($expiresAt && (! $existingToken->expires_at || $existingToken->expires_at->lt($expiresAt))) {
+                    $existingToken->forceFill([
+                        'expires_at' => $expiresAt,
+                    ])->save();
+                }
             }
 
             return;
@@ -137,6 +149,10 @@ class DemoEventSeeder extends Seeder
             'metadata' => $metadata,
         ];
 
+        if ($expiresAt) {
+            $attributes['expires_at'] = $expiresAt;
+        }
+
         $tokenModel = app(EventJoinTokenService::class)->createToken($event, $attributes);
 
         if ($token) {
diff --git a/tests/Feature/DemoEventSeederTest.php b/tests/Feature/DemoEventSeederTest.php
new file mode 100644
index 00000000..b463d948
--- /dev/null
+++ b/tests/Feature/DemoEventSeederTest.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Event;
+use App\Models\EventType;
+use App\Models\Package;
+use App\Models\Tenant;
+use Database\Seeders\DemoEventSeeder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Carbon;
+use Tests\TestCase;
+
+class DemoEventSeederTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_demo_wedding_join_token_ttl_is_extended(): void
+    {
+        $now = Carbon::parse('2026-02-04 12:00:00');
+        Carbon::setTestNow($now);
+
+        $tenant = Tenant::factory()->create(['slug' => 'demo-tenant']);
+
+        EventType::factory()->create([
+            'slug' => 'wedding',
+            'name' => ['de' => 'Hochzeit', 'en' => 'Wedding'],
+        ]);
+        EventType::factory()->create([
+            'slug' => 'corporate',
+            'name' => ['de' => 'Business', 'en' => 'Corporate'],
+        ]);
+
+        Package::factory()->endcustomer()->create([
+            'slug' => 'standard',
+            'name' => 'Standard',
+        ]);
+        Package::factory()->endcustomer()->create([
+            'slug' => 'premium',
+            'name' => 'Premium',
+        ]);
+
+        $event = Event::factory()->create([
+            'tenant_id' => $tenant->id,
+            'event_type_id' => EventType::where('slug', 'wedding')->value('id'),
+            'slug' => 'demo-wedding-2025',
+            'name' => ['de' => 'Demo', 'en' => 'Demo'],
+            'date' => $now->copy()->addMonth(),
+        ]);
+
+        $token = $event->joinTokens()->latest('id')->first();
+        $token->forceFill(['expires_at' => $now->copy()->subDay()])->save();
+
+        $this->seed(DemoEventSeeder::class);
+
+        $event->refresh();
+        $token = $event->joinTokens()->latest('id')->first();
+
+        $expectedExpiry = $now->copy()->addYears(20);
+
+        $this->assertTrue($token->expires_at->equalTo($expectedExpiry));
+
+        Carbon::setTestNow();
+    }
+}