diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3fb7941..1c79b56 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ 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]
+## [4.3.1] - 2021-11-01
+
+### Fixed
+- ts types.
 
 ## [4.3.0] - 2021-08-09
 ### Added
diff --git a/package.json b/package.json
index 1a7554c..963b143 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@datastructures-js/binary-search-tree",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "description": "binary search tree & avl tree (self balancing tree) implementation in javascript",
   "main": "index.js",
   "scripts": {