diff --git a/03_source/frontend/vite.config.ts b/03_source/frontend/vite.config.ts
index fef4b18..769d587 100644
--- a/03_source/frontend/vite.config.ts
+++ b/03_source/frontend/vite.config.ts
@@ -31,8 +31,16 @@ export default defineConfig({
       },
     ],
   },
-  server: { port: PORT, host: true },
-  preview: { port: PORT, host: true },
+  server: {
+    port: PORT,
+    host: true,
+    allowedHosts: ['pa_admin.louislabs.com', 'localhost'],
+  },
+  preview: {
+    port: PORT,
+    host: true,
+    allowedHosts: ['pa_admin.louislabs.com', 'localhost'],
+  },
   build: {
     sourcemap: true,
   },