Corrected changelog entries

Author: mikebronner

CHANGELOG.md

@@ -2,10 +2,14 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
-## [4.0.1] - 2 Sep 2017
+## [4.0.2] - 2 Sep 2017
 ### Fixed
 - erroneous method `getProvider()` and marked it as deprecated.
 
+## [4.0.1] - 7 Aug 2017
+### Fixed
+- missing PSR-7 dependency.
+
 ## [4.0.0] - 3 Aug 2017
 ### Added
 - Laravel 5.5 package auto-discovery.