diff --git a/api/index.ts b/api/index.ts
index 56349df..fbde330 100644
--- a/api/index.ts
+++ b/api/index.ts
@@ -1,19 +1,15 @@
 import type { VercelRequest, VercelResponse } from '@vercel/node';
 import app from './app.js';
-import mongoose from 'mongoose';
+import { connectDB } from '../src/server/config/database.js';
 
 export default async function handler(req: VercelRequest, res: VercelResponse) {
     try {
         console.log('--- API CALL:', req.url);
 
-        // Inline connection to avoid external file dependency issues during boot
-        if (mongoose.connection.readyState !== 1) {
-            const uri = process.env.MONGODB_URI;
-            if (!uri) throw new Error('MONGODB_URI environment variable is missing');
-            await mongoose.connect(uri);
-        }
+        // Conecta ao Banco de Dados (Supabase/Postgres)
+        await connectDB();
 
-        // Use the localized app.js
+        // Passa o controle para o Express
         return app(req, res);
     } catch (error: unknown) {
         console.error('SERVERLESS BOOT ERROR:', error);
@@ -21,8 +17,7 @@ export default async function handler(req: VercelRequest, res: VercelResponse) {
         return res.status(500).json({
             error: 'Serverless Boot Error',
             message: message,
-            path: req.url,
-            suggestion: 'Check Vercel Logs for module resolution errors'
+            path: req.url
         });
     }
 }
diff --git a/package.json b/package.json
index 3bd66e3..1ce6d38 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "private": true,
   "type": "module",
   "engines": {
-    "node": ">=22.12.0"
+    "node": ">=20.12.0"
   },
   "scripts": {
     "dev": "concurrently \"vite\" \"tsx watch src/server/index.ts\"",