diff --git a/readme-ja.md b/readme-ja.md
index f66d9b1a..f0c49dab 100644
--- a/readme-ja.md
+++ b/readme-ja.md
@@ -25,7 +25,7 @@
 
 ## slack group
 私たちにはslack groupもあります！世界中のプログラマー達と、Boostnoteについてディスカッションをしましょう！ <br>
-https://boostnote-group.slack.com/shared_invite/MTU3ODcwNzY1ODk0LTE0OTAwNjQ0NTYtMjY4NTYwOTdmYQ
+[こちらから](https://boostnote-group.slack.com/shared_invite/MTU5OTMwNjMyNjQxLTE0OTA2NzkyNzktYzkzYmZhYjk0Nw)
 
 ## More Information
 * Website: http://boostnote.io/
diff --git a/readme.md b/readme.md
index 79ca12b2..1427144b 100644
--- a/readme.md
+++ b/readme.md
@@ -25,7 +25,7 @@
 
 ## slack group
 Let's talk about Boostnote's feature, request, Japanese gourmet and things like that🍣 <br>
-https://boostnote-group.slack.com/shared_invite/MTU3ODcwNzY1ODk0LTE0OTAwNjQ0NTYtMjY4NTYwOTdmYQ
+[Join us](https://boostnote-group.slack.com/shared_invite/MTU5OTMwNjMyNjQxLTE0OTA2NzkyNzktYzkzYmZhYjk0Nw)
 
 ## More Information
 * Website: http://boostnote.io/