diff --git a/CHANGELOG.md b/CHANGELOG.md
index 02cd982..32b56ac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,9 +4,11 @@ All notable changes to this project will be documented in this file.
 
 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
+## [4.2.4] - 2020-10-29
 
-Nothing yet.
+### Improved
+
+  - Upgrade dependencies to remove npm vulnerability warnings.
 
 ## [4.2.3] - 2020-04-12
 
diff --git a/package-lock.json b/package-lock.json
index cbcf0e4..3b5a681 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@small-tech/node-pebble",
-  "version": "4.2.3",
+  "version": "4.2.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index f39a50f..dc59524 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@small-tech/node-pebble",
-  "version": "4.2.3",
+  "version": "4.2.4",
   "description": "A Node.js wrapper for Let’s Encrypt’s Pebble (“a small RFC 8555 ACME test server not suited for a production certificate authority”).",
   "main": "index.js",
   "os": [