diff --git a/docker-compose.yml b/docker-compose.yml
index d233b68d..5a9b7bd9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -3779,13 +3779,13 @@ services:
       swag_port: 1337
       swag_server_custom_directive:
         location ~* \.io {
-          proxy_set_header Upgrade $http_upgrade;
+          proxy_set_header Upgrade $$http_upgrade;
           proxy_set_header Connection "upgrade";
           client_max_body_size 50M;
-          proxy_set_header Host $http_host;
-          proxy_set_header X-Real-IP $remote_addr;
-          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-          proxy_set_header X-Forwarded-Proto $scheme;
+          proxy_set_header Host $$http_host;
+          proxy_set_header X-Real-IP $$remote_addr;
+          proxy_set_header X-Forwarded-For $$proxy_add_x_forwarded_for;
+          proxy_set_header X-Forwarded-Proto $$scheme;
           proxy_set_header X-Frame-Options SAMEORIGIN;
           proxy_buffers 256 16k;
           proxy_buffer_size 16k;