diff --git a/replit.md b/replit.md
index 99012374..efd4809f 100644
--- a/replit.md
+++ b/replit.md
@@ -59,6 +59,7 @@ npm start           # Start production server
 ### Development
 - The development server runs on **port 5000** (required for Replit's webview)
 - Host is set to `0.0.0.0` to allow Replit proxy access
+- `allowedHosts: true` configured to allow Replit's dynamic proxy hostnames
 - Vite HMR is configured for proper hot reload in Replit environment
 
 ### Deployment
diff --git a/vite.config.ts b/vite.config.ts
index a0e9da48..b8f0e83f 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -8,6 +8,7 @@ export default defineConfig(({ mode }) => ({
     host: "0.0.0.0",
     port: 5000,
     strictPort: true,
+    allowedHosts: true,
     hmr: {
       clientPort: 5000,
     },