diff --git a/docker/nginx/nginx.conf b/docker/nginx/nginx.conf
index cf34d6eae..a012a1e3b 100644
--- a/docker/nginx/nginx.conf
+++ b/docker/nginx/nginx.conf
@@ -52,7 +52,7 @@ http {
             proxy_http_version 1.1;
 
             # Headers
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -76,7 +76,7 @@ http {
         location /api/models {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -86,7 +86,7 @@ http {
         location /api/memory {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -96,7 +96,7 @@ http {
         location /api/mcp {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -106,7 +106,7 @@ http {
         location /api/skills {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -116,7 +116,7 @@ http {
         location /api/agents {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -126,7 +126,7 @@ http {
         location ~ ^/api/threads/[^/]+/uploads {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -140,7 +140,7 @@ http {
         location ~ ^/api/threads {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -150,7 +150,7 @@ http {
         location /docs {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -160,7 +160,7 @@ http {
         location /redoc {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -170,7 +170,7 @@ http {
         location /openapi.json {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -180,7 +180,7 @@ http {
         location /health {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -193,7 +193,7 @@ http {
             set $provisioner_upstream provisioner:8002;
             proxy_pass http://$provisioner_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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 $scheme;
@@ -204,7 +204,7 @@ http {
         location /api/ {
             proxy_pass http://$gateway_upstream;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -216,7 +216,7 @@ http {
             proxy_http_version 1.1;
 
             # Headers
-            proxy_set_header Host $host;
+            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;
diff --git a/docker/nginx/nginx.local.conf b/docker/nginx/nginx.local.conf
index 473d3f1d1..eac7f8a04 100644
--- a/docker/nginx/nginx.local.conf
+++ b/docker/nginx/nginx.local.conf
@@ -52,7 +52,7 @@ http {
             proxy_http_version 1.1;
 
             # Headers
-            proxy_set_header Host $host;
+            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;
@@ -76,7 +76,7 @@ http {
         location /api/models {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -86,7 +86,7 @@ http {
         location /api/memory {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -96,7 +96,7 @@ http {
         location /api/mcp {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -106,7 +106,7 @@ http {
         location /api/skills {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -116,7 +116,7 @@ http {
         location /api/agents {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -126,7 +126,7 @@ http {
         location ~ ^/api/threads/[^/]+/uploads {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -140,7 +140,7 @@ http {
         location ~ ^/api/threads {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -150,7 +150,7 @@ http {
         location /api/docs {
             proxy_pass http://gateway/docs  ;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -160,7 +160,7 @@ http {
         location /api/redoc {
             proxy_pass http://gateway/redoc;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -170,7 +170,7 @@ http {
         location /openapi.json {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -180,7 +180,7 @@ http {
         location /health {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -195,7 +195,7 @@ http {
         location /api/ {
             proxy_pass http://gateway;
             proxy_http_version 1.1;
-            proxy_set_header Host $host;
+            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;
@@ -211,7 +211,7 @@ http {
             proxy_http_version 1.1;
 
             # Headers
-            proxy_set_header Host $host;
+            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;