diff --git a/radarr.subfolder.conf.sample b/radarr.subfolder.conf.sample
index f826e31..52303ae 100644
--- a/radarr.subfolder.conf.sample
+++ b/radarr.subfolder.conf.sample
@@ -19,6 +19,9 @@ location ^~ /radarr {
     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 {