diff --git a/src/mantine-dates/src/utils/get-timezone-offset.ts b/src/mantine-dates/src/utils/get-timezone-offset.ts
index 4d6063f3131..fcc63d8ad11 100644
--- a/src/mantine-dates/src/utils/get-timezone-offset.ts
+++ b/src/mantine-dates/src/utils/get-timezone-offset.ts
@@ -1,6 +1,6 @@
 import dayjs from 'dayjs';
-import utcPlugin from 'dayjs/plugin/utc';
-import timezonePlugin from 'dayjs/plugin/timezone';
+import utcPlugin from 'dayjs/plugin/utc.js';
+import timezonePlugin from 'dayjs/plugin/timezone.js';
 
 dayjs.extend(utcPlugin);
 dayjs.extend(timezonePlugin);