diff --git a/package.json b/package.json
index 07ee116..f267f77 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "dev": "npm run deploy-static && nodemon opt-cc-api/server.js",
     "deploy-static": "cd opt-cc-static && ng build && ln -s ../opt-cc-api/resource/ ../public/resource",
     "deploy-static-prod": "cd opt-cc-static && ng build --env=prod && ln -s ../opt-cc-api/resource/ ../public/resource",
-    "postinstall": "npm install --prefix ./opt-cc-static ./opt-cc-static && npm install --prefix ./opt-cc-api ./opt-cc-api"
+    "postinstall": "npm install --prefix ./opt-cc-static ./opt-cc-static && npm install --prefix ./opt-cc-api ./opt-cc-api",
+    "mongodb": "mongod --dbpath ./mongodb-data"
   }
 }