diff --git a/radarr.subdomain.conf.sample b/radarr.subdomain.conf.sample
index 62b0de6..20463da 100644
--- a/radarr.subdomain.conf.sample
+++ b/radarr.subdomain.conf.sample
@@ -35,6 +35,10 @@ server {
         set $upstream_proto http;
         proxy_pass $upstream_proto://$upstream_app:$upstream_port;
 
+        #SignalR - Radarr V3
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $http_connection;
+
     }
 
     location ~ (/radarr)?/api {