diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5e9c6fad..42e6fc20 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,11 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased]
+## [1.4.0] - 2018-08-06
 
 ### Added
 
-- Add excel function EXACT(value1, value2) support - [595](https://github.com/PHPOffice/PhpSpreadsheet/pull/595)
+- Add excel function EXACT(value1, value2) support - [#595](https://github.com/PHPOffice/PhpSpreadsheet/pull/595)
 - Support workbook view attributes for Xlsx format - [#523](https://github.com/PHPOffice/PhpSpreadsheet/issues/523)
 - Read and write hyperlink for drawing image - [#490](https://github.com/PHPOffice/PhpSpreadsheet/pull/490)
 - Added calculation engine support for the new bitwise functions that were added in MS Excel 2013