diff --git a/conf/nginx.conf b/conf/nginx.conf
index 6ffbbbe..a8ba8ab 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -4,6 +4,7 @@ location __PATH__/ {
   proxy_pass http://127.0.0.1:__PORT__;
   more_set_headers "X-Frame-Options: SAMEORIGIN";
   proxy_set_header Host $host;
+  proxy_http_version 1.1;
   proxy_request_buffering off;
   proxy_set_header Upgrade $http_upgrade;
   proxy_set_header Connection upgrade;