CHANGELOG.md in govuk_tech_docs-2.2.0 vs CHANGELOG.md in govuk_tech_docs-2.2.1

@@ -1,7 +1,12 @@
 # Changelog
 
+## 2.2.1
+
+- [#218: Remove unnecessary explicit dependencies: sprockets, activesupport, sass and pry](https://github.com/alphagov/tech-docs-gem/pull/218)
+- [#125: Fix API docs showing required properties as optional](https://github.com/alphagov/tech-docs-gem/pull/125)
+
 ## 2.2.0
 
 ### Accessibility Fixes
 
 - [#205: Improve table of contents accessibility](https://github.com/alphagov/tech-docs-gem/pull/205)
@@ -97,10 +102,9 @@
 - contribution links are now within a landmark
 
 You can look at the [2.0.6 milestone](https://github.com/alphagov/tech-docs-gem/milestone/2?closed=1) for the closed issues, and [pull request #129: Accessibility improvements](https://github.com/alphagov/tech-docs-gem/pull/129) for details on how these issues were fixed.
 
 ## 2.0.5
-
 
 Adds [new global configuration option](https://github.com/alphagov/tech-docs-gem/pull/122) that controls whether review banners appear or not at the bottom of pages when expiry dates are set in the frontmatter.
 
 [Fixes the hard-coded service link](https://github.com/alphagov/tech-docs-gem/pull/119) in the header.