diff --git a/src/lib/helper.ts b/src/lib/helper.ts
index 002be5a3..aeda46f6 100644
--- a/src/lib/helper.ts
+++ b/src/lib/helper.ts
@@ -31,8 +31,8 @@ export const formatNumber = (
 
 export const formatCurrency = (
   value: number | bigint | Intl.StringNumericLiteral,
-  currency = 'USD',
-  locale = 'en-US',
+  currency = 'IDR',
+  locale = 'id-ID',
   minimumFractionDigits = 0,
   maximumFractionDigits = 2
 ) => {