diff --git a/js-joda/README.md b/js-joda/README.md
index db0504761b2838cea162bbb06755566d004c78ac..8e1ba1f758aee4a3534ec85fc6cd8f1187c9605c 100644
--- a/js-joda/README.md
+++ b/js-joda/README.md
@@ -6,7 +6,7 @@ js-joda is a utility library for processing time and date. It provides simple AP
 
 ## How to Install
 
-```
+```shell
  ohpm install @js-joda/core
  ohpm install @js-joda/timezone
  ohpm install @ohos/localeenus
@@ -16,7 +16,7 @@ For details about the OpenHarmony ohpm environment configuration, see [OpenHarmo
 
 ## How to Use
 
-```
+```javascript
 import { LocalDate } from '@js-joda/core'
 
 console.info(LocalDate.now().toString());