diff --git a/CHANGELOG.md b/CHANGELOG.md
index f4431e3..c41870d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,9 @@
-## Unreleased
+## 3.0.0
 * Support Rails 6,1. 7.0, 7.1.
-* Drop support for Raiils below 6.0
-* Drop support for Ruby 2
-* Drop support for classic loader
+* Support Ruby >= 3.0.
+* Drop support for Rails <= 6.0.
+* Drop support for Ruby 2.
+* Drop support for classic loader.
 * The functionality to extend the view_paths has been discontinued.
 * The functionality to extend the models has been discontinued.
 
diff --git a/README.md b/README.md
index 94ba8c7..d1080b6 100644
--- a/README.md
+++ b/README.md
@@ -11,8 +11,8 @@ When any errors are raised from chanko's features,
 it will be automatically hidden and fallback to its normal behavior.
 
 ## Requirements
-* Ruby >= 2.6.0
-* Rails >= 5.0.0
+* Ruby >= 3.0.0
+* Rails >= 6.1.0
 
 ## Usage
 Add to your Gemfile.
diff --git a/lib/chanko/version.rb b/lib/chanko/version.rb
index 72d6d57..ea2e138 100644
--- a/lib/chanko/version.rb
+++ b/lib/chanko/version.rb
@@ -1,3 +1,3 @@
 module Chanko
-  VERSION = "2.3.0"
+  VERSION = "3.0.0"
 end