diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac59382..226fbaa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [1.0.0] - 2023-05-17
 ### Added
 - `single_space_around_construct` fixer.
 - `no_extra_blank_lines` fixer.
@@ -159,7 +161,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Added
 - First release
 
-[Unreleased]: https://github.com/elyby/php-code-style/compare/0.5.0...HEAD
+[Unreleased]: https://github.com/elyby/php-code-style/compare/1.0.0...HEAD
+[1.0.0]: https://github.com/elyby/php-code-style/compare/0.5.0...1.0.0
 [0.5.0]: https://github.com/elyby/php-code-style/compare/0.4.0...0.5.0
 [0.4.0]: https://github.com/elyby/php-code-style/compare/0.3.0...0.4.0
 [0.3.0]: https://github.com/elyby/php-code-style/compare/0.2.1...0.3.0