diff --git a/src/app/utils/formatUtil.ts b/src/app/utils/formatUtil.ts
index 8dc4f02..2b3708c 100644
--- a/src/app/utils/formatUtil.ts
+++ b/src/app/utils/formatUtil.ts
@@ -30,7 +30,7 @@ export const integerFormatter = new Intl.NumberFormat("en-HK", {});
 
 export const INPUT_DATE_FORMAT = "YYYY-MM-DD";
 
-export const OUTPUT_DATE_FORMAT = "YYYY/MM/DD";
+export const OUTPUT_DATE_FORMAT = "YYYY-MM-DD";
 
 export const INPUT_TIME_FORMAT = "HH:mm:ss";