diff --git a/bootstrap/autoload.php b/bootstrap/autoload.php
index 5468710c8..cba226276 100644
--- a/bootstrap/autoload.php
+++ b/bootstrap/autoload.php
@@ -1,7 +1,7 @@
 <?php
 
 // Define minimum supported PHP version
-define('AKAUNTING_PHP', '7.3.0');
+define('AKAUNTING_PHP', '8.0.2');
 
 // Check PHP version
 if (version_compare(PHP_VERSION, AKAUNTING_PHP, '<')) {
@@ -16,8 +16,6 @@ if (version_compare(PHP_VERSION, AKAUNTING_PHP, '<')) {
     die(1);
 }
 
-define('LARAVEL_START', microtime(true));
-
 // Load composer for core
 require __DIR__ . '/../vendor/autoload.php';
 
@@ -25,7 +23,7 @@ require __DIR__ . '/../vendor/autoload.php';
 foreach (glob(__DIR__ . '/../modules/*') as $folder) {
     $autoload = $folder . '/vendor/autoload.php';
 
-    if (!is_file($autoload)) {
+    if (! is_file($autoload)) {
         continue;
     }
 
diff --git a/index.php b/index.php
index 169e2f190..b9c93c5d0 100644
--- a/index.php
+++ b/index.php
@@ -7,19 +7,24 @@
  * @link        https://akaunting.com
  */
 
+define('LARAVEL_START', microtime(true));
+
+// Check for maintenance
+if (file_exists($maintenance = __DIR__ . '/storage/framework/maintenance.php')) {
+    require $maintenance;
+}
+
 // Register the auto-loader
-require(__DIR__ . '/bootstrap/autoload.php');
+require __DIR__ . '/bootstrap/autoload.php';
 
 // Load the app
-$app = require_once(__DIR__ . '/bootstrap/app.php');
+$app = require_once __DIR__ . '/bootstrap/app.php';
 
 // Run the app
 $kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);
 
 $response = $kernel->handle(
     $request = Illuminate\Http\Request::capture()
-);
-
-$response->send();
+)->send();
 
 $kernel->terminate($request, $response);