diff --git a/CHANGELOG.md b/CHANGELOG.md
index 91dd3fe..ab41f39 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+# v4.3.1 2024-05-21
+
+* [Fix mergeDefaults in block-toolbar-plugin/index.js](https://github.com/team-formalist/formalist-standard-react/pull/199)
+
 # v4.3.0 2022-04-07
 
 * [Add support for closing a custom optionControl component](https://github.com/team-formalist/formalist-standard-react/pull/190)
diff --git a/package.json b/package.json
index 42c50e7..405cc1d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "formalist-standard-react",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "description": "A standard form implementation for Formalist using React",
   "main": "lib/index.js",
   "scripts": {