diff --git a/content/docs/how-to-guides/behind-nginx.md b/content/docs/how-to-guides/behind-nginx.md
index 48b5263..e7c5fe4 100644
--- a/content/docs/how-to-guides/behind-nginx.md
+++ b/content/docs/how-to-guides/behind-nginx.md
@@ -19,6 +19,9 @@ server {
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
     }
 
     # xray-core ws-path: /
@@ -57,6 +60,9 @@ server {
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
     }
 }
 ```