diff --git a/scripts/danger/clean/cleaner.js b/scripts/danger/clean/cleaner.js
index a63c478e0..3d364fd23 100644
--- a/scripts/danger/clean/cleaner.js
+++ b/scripts/danger/clean/cleaner.js
@@ -1,12 +1,13 @@
 const rimraf = require('rimraf')
 const mongoose = require('mongoose')
+mongoose.Promise = global.Promise
 
 const constants = require('../../../server/initializers/constants')
 
 const mongodbUrl = 'mongodb://' + constants.CONFIG.DATABASE.HOST + ':' + constants.CONFIG.DATABASE.PORT + '/' + constants.CONFIG.DATABASE.DBNAME
 mongoose.connect(mongodbUrl, function () {
   console.info('Deleting MongoDB %s database.', constants.CONFIG.DATABASE.DBNAME)
-  mongoose.connection.db.dropDatabase(function () {
+  mongoose.connection.dropDatabase(function () {
     mongoose.connection.close()
   })
 })