diff --git a/public/auth.php b/public/auth.php
index 663f4fd..91c9fc1 100644
--- a/public/auth.php
+++ b/public/auth.php
@@ -15,6 +15,7 @@ if (isset($_GET['code']) && isset($_GET['state'])) {
 
     // Autorisierungscode gegen Token tauschen
     $ch = curl_init($authelia_url . '/api/oidc/token');
+    curl_setopt($ch, CURLOPT_RESOLVE, ["auth.iten.pro:443:84.227.207.55"]);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
     curl_setopt($ch, CURLOPT_POST, true);
     curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query([
@@ -32,7 +33,7 @@ if (isset($_GET['code']) && isset($_GET['state'])) {
         curl_close($ch);
         die('Kritischer cURL-Netzwerkfehler: ' . $error_msg);
     }
-    
+
     curl_close($ch);
     $data = json_decode($response, true);