Fix date in cl (#19)

Author: Juliya Smith

CHANGELOG.md

@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 The intended audience of this file is for py42 consumers -- as such, changes that don't affect
 how a consumer would use the library (e.g. adding unit tests, updating documentation, etc) are not captured here.
 
-## 0.4.3 - 2020-03-16
+## 0.4.3 - 2020-03-17
 
 ### Added