diff --git a/lib/bootstrap.php b/lib/bootstrap.php
index 5967b20..ebb5bab 100644
--- a/lib/bootstrap.php
+++ b/lib/bootstrap.php
@@ -16,6 +16,15 @@ error_reporting(E_ALL);
 
 if (session_status() !== PHP_SESSION_ACTIVE)
 {
+    // Session-Cookie Lifetime auf 30 Tage setzen
+    session_set_cookie_params([
+        'lifetime' => 60 * 60 * 24 * 30, // 30 days
+        'path' => '/',
+        'domain' => '',
+        'secure' => false,
+        'httponly' => true,
+        'samesite' => 'Lax'
+    ]);
     session_start();
 }