diff --git a/docs/PROJECT_PROCESSES.md b/docs/PROJECT_PROCESSES.md
index 60ff4d3..7d6b138 100644
--- a/docs/PROJECT_PROCESSES.md
+++ b/docs/PROJECT_PROCESSES.md
@@ -53,8 +53,8 @@ npm install
 npm run dev
 
 # 4. Tarayıcıda açma
-# Frontend: http://localhost:5173
-# Backend API: http://localhost:3000
+# Frontend: http://localhost:5005
+# Backend API: http://localhost:3005
 ```
 
 #### 1.2 Development Workflow
@@ -1531,7 +1531,7 @@ const getFuelSlips = (userId, status) => {
 const corsOptions = {
   origin: process.env.NODE_ENV === 'production'
     ? 'https://your-domain.com'
-    : ['http://localhost:5173', 'http://localhost:4173'],
+    : ['http://localhost:5005', 'http://localhost:4005'],
   methods: ['GET', 'POST', 'PUT', 'DELETE'],
   allowedHeaders: ['Content-Type', 'Authorization'],
   credentials: true,
diff --git a/docs/TEST_GUIDE.md b/docs/TEST_GUIDE.md
index 255738a..06b823c 100644
--- a/docs/TEST_GUIDE.md
+++ b/docs/TEST_GUIDE.md
@@ -5,8 +5,8 @@
 KNOWLEDGE_BASE.md'deki iş akışlarına göre implement edilen tam fonksiyonel yakıt takip sistemi.
 
 ### 🚀 **Sunucu Durumu**
-- **Frontend**: `http://localhost:5173/` (SvelteKit)
-- **Backend**: `http://localhost:3000` (Express/Socket.IO)
+- **Frontend**: `http://localhost:5005/` (SvelteKit)
+- **Backend**: `http://localhost:3005` (Express/Socket.IO)
 - **Status**: ✅ Çalışıyor
 
 ## 🔐 **Test Kullanıcıları**
diff --git a/package.json b/package.json
index 0cb241b..551889b 100644
--- a/package.json
+++ b/package.json
@@ -5,11 +5,11 @@
   "main": "src/server.js",
   "scripts": {
     "dev": "npm run server & npm run client",
-    "server": "node src/server.js",
-    "client": "vite dev",
+    "server": "PORT=3005 node src/server.js",
+    "client": "vite dev --port 5005",
     "build": "vite build",
-    "preview": "vite preview",
-    "start": "node src/production-server.js",
+    "preview": "vite preview --port 5005",
+    "start": "PORT=3005 node src/production-server.js",
     "prod": "npm run build && npm run start",
     "setup": "node -e \"import('./src/server.js').then(() => console.log('Database setup completed')).catch(console.error);\"",
     "init-db": "node -e \"import('./src/server.js').catch(console.error)\""
diff --git a/src/lib/components/GoodsManagerContent.svelte b/src/lib/components/GoodsManagerContent.svelte
index 60e3a60..c8d51a4 100644
--- a/src/lib/components/GoodsManagerContent.svelte
+++ b/src/lib/components/GoodsManagerContent.svelte
@@ -29,7 +29,7 @@
 
 		console.log('🔌 Connecting to Socket.IO...');
 		// Socket.IO bağlantısı
-		socket = io('http://localhost:3001');
+		socket = io('http://localhost:3005');
 
 		console.log('👤 Goods Manager ID:', user.id);
 
diff --git a/src/lib/server/socketClient.js b/src/lib/server/socketClient.js
index 813c371..1a0a831 100644
--- a/src/lib/server/socketClient.js
+++ b/src/lib/server/socketClient.js
@@ -4,7 +4,7 @@ let socket = null;
 
 export function getSocketClient() {
 	if (!socket) {
-		socket = io('http://localhost:3001', {
+		socket = io('http://localhost:3005', {
 			transports: ['websocket', 'polling']
 		});
 
diff --git a/src/production-server.js b/src/production-server.js
index c189176..9e48ff4 100644
--- a/src/production-server.js
+++ b/src/production-server.js
@@ -72,7 +72,7 @@ const app = express();
 const server = createServer(app);
 const io = new Server(server, {
 	cors: {
-		origin: process.env.NODE_ENV === 'production' ? false : ["http://localhost:5173"],
+		origin: process.env.NODE_ENV === 'production' ? false : ["http://localhost:5005"],
 		methods: ["GET", "POST"]
 	}
 });
@@ -80,7 +80,7 @@ const io = new Server(server, {
 // Export io for use in other modules
 export { io };
 
-const PORT = process.env.PORT || 3001;
+const PORT = process.env.PORT || 3005;
 
 // ES Module equivalent of __dirname
 const __filename = fileURLToPath(import.meta.url);
diff --git a/src/server.js b/src/server.js
index e7ca422..fa18dd7 100644
--- a/src/server.js
+++ b/src/server.js
@@ -117,7 +117,7 @@ const app = express();
 const server = createServer(app);
 const io = new Server(server, {
 	cors: {
-		origin: "http://localhost:5173",
+		origin: "http://localhost:5005",
 		methods: ["GET", "POST"]
 	}
 });
@@ -125,7 +125,7 @@ const io = new Server(server, {
 // Export io for use in other modules
 export { io };
 
-const PORT = process.env.PORT || 3001;
+const PORT = process.env.PORT || 3005;
 
 // ES Module equivalent of __dirname
 const __filename = fileURLToPath(import.meta.url);
diff --git a/vite.config.js b/vite.config.js
index ee5d0c5..b4f6ab3 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -4,10 +4,10 @@ import { defineConfig } from 'vite';
 export default defineConfig({
 	plugins: [sveltekit()],
 	server: {
-		port: 5173,
+		port: 5005,
 		proxy: {
 			'/api': {
-				target: 'http://localhost:3001',
+				target: 'http://localhost:3005',
 				changeOrigin: true
 			}
 		}