diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ad0ac6..3c702bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+
+## [0.5.4] - 2024-01-28
 ### Added
 - Support for `ATtiny44A` ([#141]).
 - Support for `ATtiny84A` ([#143]).
@@ -261,7 +264,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 Initial release with support for `ATmega1280`, `ATmega328P`, `ATmega32U4`,
 `ATmega64`, `ATmega8`, `ATtiny85`.
 
-[Unreleased]: https://github.com/Rahix/avr-device/compare/v0.5.3...HEAD
+[Unreleased]: https://github.com/Rahix/avr-device/compare/v0.5.4...HEAD
+[0.5.4]: https://github.com/Rahix/avr-device/compare/v0.5.3...v0.5.4
 [0.5.3]: https://github.com/Rahix/avr-device/compare/v0.5.2...v0.5.3
 [0.5.2]: https://github.com/Rahix/avr-device/compare/v0.5.1...v0.5.2
 [0.5.1]: https://github.com/Rahix/avr-device/compare/v0.5.0...v0.5.1
diff --git a/Cargo.toml b/Cargo.toml
index 5af46ed..552b59c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "avr-device"
-version = "0.5.3"
+version = "0.5.4"
 
 authors = ["Rahix <rahix@rahix.de>"]
 edition = "2021"
@@ -79,5 +79,5 @@ critical-section = { version = "1.1.1", optional = true }
 
 [dependencies.avr-device-macros]
 path = "macros/"
-version = "=0.5.3"
+version = "=0.5.4"
 optional = true
diff --git a/README.md b/README.md
index d5de559..5998f10 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Auto-generated wrappers around registers for AVR microcontrollers.
 Add the following to `Cargo.toml`:
 ```toml
 [dependencies.avr-device]
-version = "0.5.3"
+version = "0.5.4"
 features = ["atmega32u4"]
 ```
 
diff --git a/macros/Cargo.toml b/macros/Cargo.toml
index 29777de..617e80b 100644
--- a/macros/Cargo.toml
+++ b/macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "avr-device-macros"
-version = "0.5.3"
+version = "0.5.4"
 
 authors = ["Rahix <rahix@rahix.de>"]
 edition = "2021"