diff --git a/readme-ja.md b/readme-ja.md
index a36585ee..052d5c7e 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/MTY3MzY5Mjc4ODk3LTE0OTE5Njg0NjEtNzg2MzUwOTY3NQ)
+[こちらから](https://boostnote-group.slack.com/shared_invite/MTcxMjIwODk5Mzk3LTE0OTI1NjQxNDUtMTkwZTBjOWFkMg)
 
 ## More Information
 * Website: http://boostnote.io/
diff --git a/readme.md b/readme.md
index a9107c40..6ac7e21d 100644
--- a/readme.md
+++ b/readme.md
@@ -25,7 +25,7 @@
 
 ## Slack Group
 Let's talk about Boostnote's great features, new feature requests and things like Japanese gourmet. 🍣 <br>
-[Join us](https://boostnote-group.slack.com/shared_invite/MTY3MzY5Mjc4ODk3LTE0OTE5Njg0NjEtNzg2MzUwOTY3NQ)
+[Join us](https://boostnote-group.slack.com/shared_invite/MTcxMjIwODk5Mzk3LTE0OTI1NjQxNDUtMTkwZTBjOWFkMg)
 
 ## More Information
 * [Website](https://boostnote.io)