diff --git a/data.ts b/data.ts
index 950f13f..3e6bcfb 100644
--- a/data.ts
+++ b/data.ts
@@ -12,7 +12,7 @@ import { pathToFileURL } from 'url'
 import { Client } from '@opensearch-project/opensearch'
 import type { ClientOptions } from '@opensearch-project/opensearch'
 import { exists } from './paths'
-import chunk from 'lodash/chunk'
+import chunk from 'lodash/chunk.js'
 
 const jsonFilename = 'sandbox-search.json'
 const jsFilename = 'sandbox-search.js'