diff --git a/conf/main.conf.php b/conf/main.conf.php
index 9cca9526..b9d2aa84 100644
--- a/conf/main.conf.php
+++ b/conf/main.conf.php
@@ -16,7 +16,7 @@ class Config
 
     public function __construct()
     {
-        $this->updateHost = getenv('XENTRAL_UPDATE_HOST') ?: 'update.xentral.biz';
+        $this->updateHost = getenv('XENTRAL_UPDATE_HOST') ?: 'removed.upgrade.host';
 
         include("user.inc.php");
 
diff --git a/upgradesystemclient2.php b/upgradesystemclient2.php
index abd52ca8..185930ec 100644
--- a/upgradesystemclient2.php
+++ b/upgradesystemclient2.php
@@ -23,7 +23,7 @@ $app->Conf = new Config();
 $app->DB = new DB($app->Conf->WFdbhost,$app->Conf->WFdbname,$app->Conf->WFdbuser,$app->Conf->WFdbpass,null,$app->Conf->WFdbport);
 $erp = new erpAPI($app);
 
-$WAWISION['host'] = $app->Conf->updateHost ?? 'update.xentral.biz';
+$WAWISION['host'] = $app->Conf->updateHost ?? 'removed.upgrade.host';
 $WAWISION['port']="443";
 
 $myUpd = new UpgradeClient($WAWISION);
diff --git a/upgradesystemclient2_include.php b/upgradesystemclient2_include.php
index 65c4d02d..ff74008b 100644
--- a/upgradesystemclient2_include.php
+++ b/upgradesystemclient2_include.php
@@ -3,9 +3,9 @@
 require_once __DIR__ . '/xentral_autoloader.php';
 if (class_exists(Config::class)){
     $config = new Config();
-    $updateHost = $config->updateHost ?: 'update.xentral.biz';
+    $updateHost = $config->updateHost ?: 'removed.upgrade.host';
 }else{
-    $updateHost = 'update.xentral.biz';
+    $updateHost = 'removed.upgrade.host';
 }
 
 $WAWISION['host']=$updateHost;
diff --git a/upgradesystemclient2_includekey.php b/upgradesystemclient2_includekey.php
index b01e14d2..8a3ed511 100644
--- a/upgradesystemclient2_includekey.php
+++ b/upgradesystemclient2_includekey.php
@@ -3,9 +3,9 @@
 require_once __DIR__ . '/xentral_autoloader.php';
 if (class_exists(Config::class)){
     $config = new Config();
-    $updateHost = $config->updateHost ?: 'update.xentral.biz';
+    $updateHost = $config->updateHost ?: 'removed.upgrade.host';
 }else{
-    $updateHost = 'update.xentral.biz';
+    $updateHost = 'removed.upgrade.host';
 }
 define('XENTRAL_UPDATE_HOST', $updateHost);
 
diff --git a/www/update.php b/www/update.php
index 9acecdc1..1c9b87fc 100644
--- a/www/update.php
+++ b/www/update.php
@@ -11,9 +11,9 @@ use Xentral\Core\LegacyConfig\ConfigLoader;
 require_once dirname(__DIR__) . '/xentral_autoloader.php';
 if (class_exists(Config::class)){
     $config = new Config();
-    $updateHost = $config->updateHost ?: 'update.xentral.biz';
+    $updateHost = $config->updateHost ?: 'removed.upgrade.host';
 }else{
-    $updateHost = 'update.xentral.biz';
+    $updateHost = 'removed.upgrade.host';
 }
 define('XENTRAL_UPDATE_HOST', $updateHost);