CHANGELOG.md in patch_ruby-1.5.0 vs CHANGELOG.md in patch_ruby-1.5.1

@@ -3,9 +3,15 @@
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.5.1] - 2021-03-02
+
+### Fixed
+
+- Fixed a `NameError` that was thrown when `Patch::Sdg` was called. Specs have been added to ensure this does not happen again.
+
 ## [1.5.0] - 2021-03-01
 
 ### Changed
 
 - Changed base URL from https://api.usepatch.com to https://api.patch.io