diff --git a/backend/app/database.py b/backend/app/database.py
index b425a14..0435325 100644
--- a/backend/app/database.py
+++ b/backend/app/database.py
@@ -3,8 +3,11 @@ from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.orm import sessionmaker
 import os
 
-# 데이터베이스 URL
-DATABASE_URL = "postgresql://tkmp_user:tkmp_password_2025@localhost:5432/tk_mp_bom"
+# 데이터베이스 URL (환경변수에서 읽거나 기본값 사용)
+DATABASE_URL = os.getenv(
+    "DATABASE_URL", 
+    "postgresql://tkmp_user:tkmp_password_2025@postgres:5432/tk_mp_bom"
+)
 
 # SQLAlchemy 엔진 생성
 engine = create_engine(DATABASE_URL)