diff --git a/salt/states/rancher/files/rancher-proxy.conf.jinja b/salt/states/rancher/files/rancher-proxy.conf.jinja
index b4045e6..a74a862 100644
--- a/salt/states/rancher/files/rancher-proxy.conf.jinja
+++ b/salt/states/rancher/files/rancher-proxy.conf.jinja
@@ -8,6 +8,9 @@ server {
 	proxy_ssl_trusted_certificate /etc/rancher/ssl/rancher-server.crt;
 	proxy_ssl_verify off;
         proxy_set_header Host      $host:$server_port;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "Upgrade";
     }
 }