diff --git a/README.md b/README.md
index 824fcb9..6bdb84d 100644
--- a/README.md
+++ b/README.md
@@ -27,9 +27,9 @@ import * as lifftUp from '@classmethod/lifft-up'
 
 (async () => {
 　// https://developers.line.biz/en/reference/liff/#get-id-token
-　const idToken = 'ava;eofjnba;gbua'
+　const idToken = <your id token>
 　// Specify Liff Channel ID.
-　const clientId = '1234567890'
+　const clientId = <your liff channel id>
 　// The IDToken payload will be returned.
 　const payload = await lifftUp.authorizer(idToken, clientId)
 })()