diff --git a/readme-ja.md b/readme-ja.md
index 5e3420c7..cf096645 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://join.slack.com/boostnote-group/shared_invite/MTc2NTc5MTkyMjc3LTE0OTM0NDI5MzgtNzdkNjZjMzJhNA)
+[こちらから](https://boostnote-group.slack.com/shared_invite/MTgwMDk4NzMzMDg4LTE0OTQzMzQwNTgtYTM2Yzg1ZmQ0MA)
 
 ## More Information
 * Website: http://boostnote.io/
diff --git a/readme.md b/readme.md
index d9da2f36..27bba485 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://join.slack.com/boostnote-group/shared_invite/MTc2NTc5MTkyMjc3LTE0OTM0NDI5MzgtNzdkNjZjMzJhNA)
+[Join us](https://boostnote-group.slack.com/shared_invite/MTgwMDk4NzMzMDg4LTE0OTQzMzQwNTgtYTM2Yzg1ZmQ0MA)
 
 ## More Information
 * [Website](https://boostnote.io)