diff --git a/CHANGELOG.md b/CHANGELOG.md
index 48ae190..83b1440 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,8 +5,14 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+-
+
+## [v0.4.0](https://github.com/lpc55/lpc55-hal/releases/tag/0.4.0) - 2024-10-25
+
 - Update `littlefs2` to 0.5
 
+[All Changes](https://github.com/lpc55/lpc55-hal/compare/0.3.1...0.4.0)
+
 ## [v0.3.1](https://github.com/lpc55/lpc55-hal/releases/tag/0.3.1) - 2024-10-09
 
 - Update `littlefs2` to 0.4 ([#60](https://github.com/lpc55/lpc55-hal/pull/60))
diff --git a/Cargo.toml b/Cargo.toml
index 0ae5668..24042d2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "lpc55-hal"
-version = "0.3.1"
+version = "0.4.0"
 edition = "2018"
 description   = "Hardware Abstraction Layer (HAL) for the NXP LPC55S6x ARM Cortex-33 microcontrollers"
 repository = "https://github.com/lpc55/lpc55-hal"