diff --git a/.env b/.env
index 6e7c8362..49602303 100644
--- a/.env
+++ b/.env
@@ -15,9 +15,9 @@
 
 ###> symfony/framework-bundle ###
 APP_ENV=prod
-APP_SECRET=74893fb247b116fb5d2c45e3b076c20f
+APP_SECRET=a03498528f5a5fc089273ec9ae5b2849
 #TRUSTED_PROXIES=127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
-#TRUSTED_HOSTS='^localhost|example\.com$'
+#TRUSTED_HOSTS='^(localhost|example\.com)$'
 ###< symfony/framework-bundle ###
 
 ###> doctrine/doctrine-bundle ###
diff --git a/public/index.php b/public/index.php
index 1bd06d3e..8909910e 100644
--- a/public/index.php
+++ b/public/index.php
@@ -1,24 +1,4 @@
 <?php
-/**
- * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony)
- *
- * Copyright (C) 2019 Jan Böhmer (https://github.com/jbtronics)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
- *
- */
 
 use App\Kernel;
 use Symfony\Component\ErrorHandler\Debug;
@@ -32,11 +12,11 @@ if ($_SERVER['APP_DEBUG']) {
     Debug::enable();
 }
 
-if ($trustedProxies = $_SERVER['TRUSTED_PROXIES'] ?? $_ENV['TRUSTED_PROXIES'] ?? false) {
+if ($trustedProxies = $_SERVER['TRUSTED_PROXIES'] ?? false) {
     Request::setTrustedProxies(explode(',', $trustedProxies), Request::HEADER_X_FORWARDED_ALL ^ Request::HEADER_X_FORWARDED_HOST);
 }
 
-if ($trustedHosts = $_SERVER['TRUSTED_HOSTS'] ?? $_ENV['TRUSTED_HOSTS'] ?? false) {
+if ($trustedHosts = $_SERVER['TRUSTED_HOSTS'] ?? false) {
     Request::setTrustedHosts([$trustedHosts]);
 }
 
diff --git a/symfony.lock b/symfony.lock
index e9e0b067..475563ea 100644
--- a/symfony.lock
+++ b/symfony.lock
@@ -552,7 +552,7 @@
             "repo": "github.com/symfony/recipes",
             "branch": "master",
             "version": "4.4",
-            "ref": "23ecaccc551fe2f74baf613811ae529eb07762fa"
+            "ref": "36d3075b2b8e0c4de0e82356a86e4c4a4eb6681b"
         },
         "files": [
             "./config/bootstrap.php",