diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3d7a553..213d04f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@
 All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog].
 
-## Unreleased
+## 4.2 (released 2024-08-03)
 ### Changes
 * Custom Emacs Lisp formatting functions have the option to report an
   error asynchronously by invoking their callback with an error as
diff --git a/apheleia.el b/apheleia.el
index a419f47..8d4fb5f 100644
--- a/apheleia.el
+++ b/apheleia.el
@@ -8,7 +8,7 @@
 ;; Keywords: tools
 ;; Package-Requires: ((emacs "27"))
 ;; SPDX-License-Identifier: MIT
-;; Version: 4.1
+;; Version: 4.2
 
 ;;; Commentary: