diff --git a/docker-compose.yml b/docker-compose.yml
index 1c653d4..a64e00e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -37,7 +37,8 @@ services:
     container_name: track_backend
     restart: unless-stopped
     environment:
-      DATABASE_URL: postgresql+asyncpg://track:track_prod_2026@db:5432/track_production
+      # 🚀 track 主库用容器名 track_db，避免与 MOM 的 inventory_db(别名 db) 在同一网络下 DNS 解析冲突
+      DATABASE_URL: postgresql+asyncpg://track:track_prod_2026@track_db:5432/track_production
       SECRET_KEY: change-me-in-production
       DEBUG: "true"
       CORS_ORIGINS: '["http://localhost:8010","https://localhost:8010","http://192.168.9.80:8010","https://192.168.9.80:8010","tauri://localhost"]'