diff --git a/src/services/chart/core.ts b/src/services/chart/core.ts
index 14f7f6574f..9dc250f753 100644
--- a/src/services/chart/core.ts
+++ b/src/services/chart/core.ts
@@ -4,7 +4,7 @@
  * Tests located in test/chart
  */
 
-const nestedProperty = require('nested-property');
+import * as nestedProperty from 'nested-property';
 import autobind from 'autobind-decorator';
 import Logger from '../logger';
 import { Schema } from '../../misc/schema';