diff --git a/readme-ja.md b/readme-ja.md
index f0c49dab..c74b4c64 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>
-[こちらから](https://boostnote-group.slack.com/shared_invite/MTU5OTMwNjMyNjQxLTE0OTA2NzkyNzktYzkzYmZhYjk0Nw)
+[こちらから](https://boostnote-group.slack.com/shared_invite/MTY0NzI0MDc3MDQ1LTE0OTEzNTkzNzYtNTE4MmU2YWM4OA)
 
 ## More Information
 * Website: http://boostnote.io/
diff --git a/readme.md b/readme.md
index 1427144b..3d5f1ebd 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>
-[Join us](https://boostnote-group.slack.com/shared_invite/MTU5OTMwNjMyNjQxLTE0OTA2NzkyNzktYzkzYmZhYjk0Nw)
+[Join us](https://boostnote-group.slack.com/shared_invite/MTY0NzI0MDc3MDQ1LTE0OTEzNTkzNzYtNTE4MmU2YWM4OA)
 
 ## More Information
 * Website: http://boostnote.io/