diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index 1da44e5..708e72f 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -56,5 +56,14 @@ http {
         return 301 https://$host$request_uri;
     }
 
+    # default HTTPS server
+    server {
+        listen 443 ssl default_server;
+        listen 443 quic reuseport default_server;
+        listen [::]:443 ssl default_server;
+
+        return 200;
+    }
+
     include /etc/nginx/conf.d/*.conf;
 }