Fixed typo in CHANGELOG.md (#1048)

Author: JuloWaks

CHANGELOG.md

@@ -2,7 +2,7 @@ Please see [CONTRIBUTING.md](https://github.com/cucumber/cucumber/blob/master/CO
 
 ### [Unreleased](https://github.com/cucumber/cucumber-js/compare/v4.0.0...master) (In Git)
 
-### [4.0.0](https://github.com/cucumber/cucumber-js/compare/v3.2.1...v4.0.0) (2017-01-24)
+### [4.0.0](https://github.com/cucumber/cucumber-js/compare/v3.2.1...v4.0.0) (2018-01-24)
 
 #### BREAKING CHANGES