diff --git a/docker-compose.yml b/docker-compose.yml
index eabfeac..4ec17f4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -18,15 +18,17 @@ services:
   backend:
     build: ./backend
     ports:
-      - "8000:8000"
+      - "8100:8000"
     env_file: ./backend/.env
     depends_on:
       - db
       - redis
+    working_dir: /app
+    environment:
+      - PYTHONPATH=/app
     command: >
       sh -c "
         pip install alembic psycopg2-binary &&
-        cd /app &&
         alembic upgrade head &&
         uvicorn app.main:app --host 0.0.0.0 --port 8000 --reload
       "
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index 3e19c55..f2b663d 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -7,7 +7,7 @@ export default defineConfig({
   server: {
     proxy: {
       '/api': {
-        target: 'http://localhost:8000',
+        target: 'http://backend:8000',
         changeOrigin: true,
       },
     },