diff --git a/claude-code-generated/backend/src/index.ts b/claude-code-generated/backend/src/index.ts
index 8278b87f..11b7396d 100644
--- a/claude-code-generated/backend/src/index.ts
+++ b/claude-code-generated/backend/src/index.ts
@@ -10,7 +10,7 @@ import paymentsRouter from './routes/payments.js';
 import { getDb } from './database/db.js';
 
 const app = express();
-const PORT = process.env.PORT ?? 3001;
+const PORT = process.env.PORT ?? 3111;
 
 app.use(express.json());
 app.use(requestLogger);
diff --git a/claude-code-generated/frontend/src/api/client.ts b/claude-code-generated/frontend/src/api/client.ts
index 57c81129..ed4f148e 100644
--- a/claude-code-generated/frontend/src/api/client.ts
+++ b/claude-code-generated/frontend/src/api/client.ts
@@ -1,5 +1,4 @@
-// INTENTIONAL BUG (Exercise 2): port should be 3001, not 3002
-const BASE_URL = 'http://localhost:3002/api';
+const BASE_URL = 'http://localhost:3111/api';
 
 export async function apiFetch<T>(path: string, options?: RequestInit): Promise<T> {
   const response = await fetch(`${BASE_URL}${path}`, {
diff --git a/claude-code-generated/frontend/vite.config.ts b/claude-code-generated/frontend/vite.config.ts
index 4b472ff6..d0a48c02 100644
--- a/claude-code-generated/frontend/vite.config.ts
+++ b/claude-code-generated/frontend/vite.config.ts
@@ -7,7 +7,7 @@ export default defineConfig({
     port: 5173,
     proxy: {
       '/api': {
-        target: 'http://localhost:3001',
+        target: 'http://localhost:3111',
         changeOrigin: true,
       },
     },