diff --git a/CHANGELOG.md b/CHANGELOG.md
index 830c16d..89682db 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased]
+## [v1.0.0] - 2025-05-27
 
 ### Added
 
@@ -72,7 +72,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 Initial release
 
-[Unreleased]: https://github.com/rust-embedded-community/hash32/compare/v0.3.1...HEAD
+[Unreleased]: https://github.com/rust-embedded-community/hash32/compare/v1.0.0...HEAD
+[v1.0.0]: https://github.com/rust-embedded-community/hash32/compare/v0.3.1...v1.0.0
 [v0.3.1]: https://github.com/rust-embedded-community/hash32/compare/v0.3.0...v0.3.1
 [v0.3.0]: https://github.com/rust-embedded-community/hash32/compare/v0.2.1...v0.3.0
 [v0.2.1]: https://github.com/rust-embedded-community/hash32/compare/v0.2.0...v0.2.1
diff --git a/Cargo.toml b/Cargo.toml
index 08d782b..4489e75 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,6 @@ keywords = ["32-bit", "hash", "fnv", "murmur3"]
 license = "MIT OR Apache-2.0"
 name = "hash32"
 repository = "https://github.com/rust-embedded-community/hash32"
-version = "0.3.1"
+version = "1.0.0"
 edition = "2021"
 rust-version = "1.56"