diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37f2246..0abfe65 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/).
 ====================
 
-# [Unreleased]
+# 5.4.3 - 2025-08-15
 
 ## Fixed
 
diff --git a/setup.py b/setup.py
index 9c5e89d..6f08275 100644
--- a/setup.py
+++ b/setup.py
@@ -80,6 +80,8 @@ def open_relative(*path):
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
+        'Programming Language :: Python :: 3.13',
     ],
 
     # What does your project relate to?
diff --git a/src/borneo/version.py b/src/borneo/version.py
index 7c67c25..7181bcb 100644
--- a/src/borneo/version.py
+++ b/src/borneo/version.py
@@ -5,4 +5,4 @@
 #  https://oss.oracle.com/licenses/upl/
 #
 
-__version__ = '5.4.2'
+__version__ = '5.4.3'