diff --git a/CHANGELOG.md b/CHANGELOG.md
index e34e2bb..755c7bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ 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]
+## [4.0.1] - 2021-04-15
+### Changed
+- exported AvlTreeNode.
 
 ## [4.0.0] - 2021-04-14
 ### Changed
diff --git a/index.js b/index.js
index 8d67d54..44872e3 100644
--- a/index.js
+++ b/index.js
@@ -1,5 +1,5 @@
 const BinarySearchTreeNode = require('./src/binarySearchTreeNode');
-const AvlTreeNode = require('./src/binarySearchTreeNode');
+const AvlTreeNode = require('./src/AvlTreeNode');
 const BinarySearchTree = require('./src/binarySearchTree');
 const AvlTree = require('./src/avlTree');
 
diff --git a/package.json b/package.json
index 4009848..b285169 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@datastructures-js/binary-search-tree",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "description": "binary search tree & avl tree (self balancing tree) implementation in javascript",
   "main": "index.js",
   "scripts": {