diff --git a/nginx/config/core_dev.conf b/nginx/config/core_dev.conf
index be067ad..59637d4 100644
--- a/nginx/config/core_dev.conf
+++ b/nginx/config/core_dev.conf
@@ -11,6 +11,7 @@ location /js/ {
 location / {
     proxy_pass http://node:5173;
     proxy_set_header Host $host;
+    proxy_http_version 1.1;
     proxy_set_header Connection "Upgrade";
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header X-Real-IP $remote_addr;
@@ -20,6 +21,7 @@ location / {
 location /api/ {
     proxy_pass http://core:5000;
     proxy_set_header Host $host;
+    proxy_http_version 1.1;
     proxy_set_header Connection "Upgrade";
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header X-Real-IP $remote_addr;
diff --git a/nginx/config/core_prod.conf b/nginx/config/core_prod.conf
index 43ce77b..832d920 100644
--- a/nginx/config/core_prod.conf
+++ b/nginx/config/core_prod.conf
@@ -11,6 +11,7 @@ location / {
 location /api/ {
     proxy_pass http://core:5000;
     proxy_set_header Host $host;
+    proxy_http_version 1.1;
     proxy_set_header Connection "Upgrade";
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header X-Real-IP $remote_addr;