Update changelog

Author: spalladino

packages/cli/changelog.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## v2.7.1 - 2020-02-11
+
+### Fixed
+- Update gRPC dependency to support node 13. ([#1450](https://github.com/OpenZeppelin/openzeppelin-sdk/pull/1450))
+
 ## v2.7.0 - 2020-02-10
 
 ### Added