diff --git a/volumes/conf.d/portainer.armos.zinomedia.de.conf b/volumes/conf.d/portainer.armos.zinomedia.de.conf
index 8ecfe61..81e0037 100644
--- a/volumes/conf.d/portainer.armos.zinomedia.de.conf
+++ b/volumes/conf.d/portainer.armos.zinomedia.de.conf
@@ -16,11 +16,14 @@ server {
     ssl_session_timeout 10m;
 
     location / {
+        resolver 127.0.0.11;
+        set $upstream "portainer:9000";
+        
         add_header Content-Security-Policy "font-src * data: blob: 'unsafe-inline'; script-src * 'unsafe-inline' 'unsafe-eval'; connect-src * 'unsafe-inline'; img-src * data: blob: 'unsafe-inline'; frame-src *; style-src * 'unsafe-inline';" always;
         proxy_set_header X-Forwarded-Host $host:$server_port;
         proxy_set_header X-Forwarded-Server $host;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_pass http://portainer:9000;
+        proxy_pass http://$upstream;
     }
 
 }