diff --git a/frontend/nginx.conf b/frontend/nginx.conf
index 515b230..e6bc5de 100644
--- a/frontend/nginx.conf
+++ b/frontend/nginx.conf
@@ -4,6 +4,12 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
+    # Security headers
+    add_header X-Frame-Options "SAMEORIGIN" always;
+    add_header X-Content-Type-Options "nosniff" always;
+    add_header X-XSS-Protection "1; mode=block" always;
+    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+
     location / {
         try_files $uri $uri/ /index.html;
     }