diff --git a/nginx-main.conf b/nginx-main.conf
index aad6792..f3469fd 100644
--- a/nginx-main.conf
+++ b/nginx-main.conf
@@ -33,6 +33,10 @@ stream {
 http {
     include /etc/nginx/mime.types;
     default_type application/octet-stream;
+    map $http_upgrade $connection_upgrade {
+        default upgrade;
+        '' close;
+    }
     log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                     '$status $body_bytes_sent "$http_referer" '
                     '"$http_user_agent" "$http_x_forwarded_for"';
diff --git a/nginx.conf b/nginx.conf
index fdcf4cb..c27f062 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -57,6 +57,8 @@ server {
         proxy_pass http://hy-v3-openapi:9999;
         proxy_set_header Host $host;
         proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $connection_upgrade;
         proxy_connect_timeout 5s;
         proxy_read_timeout 30s;
     }