diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index a040a7b..9670b28 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -59,6 +59,7 @@ http {
 
             proxy_pass_request_headers on;
 
+            resolver 127.0.0.11 valid=30s;
             set $upstream_backend cors-school-backend;
             proxy_pass http://$upstream_backend:8080/;
 
@@ -71,6 +72,7 @@ http {
         server_name "hugo-chat.nilstrieb.dev";
 
         location / {
+            resolver 127.0.0.11 valid=30s;
             set $upstream_frontend hugo-chat-frontend;
             proxy_pass http://$upstream_frontend:80/;
         }
@@ -100,6 +102,8 @@ http {
             proxy_cache off;
 
             proxy_pass_request_headers on;
+
+            resolver 127.0.0.11 valid=30s;
             set $upstream_backend hugo-chat-backend;
             proxy_pass http://$upstream_backend:8080/;