diff --git a/CHANGELOG.md b/CHANGELOG.md
index a85927c3..8a2c07af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,6 @@
-## Unreleased
+## 4.2.0
+
+## New features
 
 - [Allow non-GOV.UK favicon and opengraph assets](https://github.com/alphagov/tech-docs-gem/pull/387)
 
diff --git a/lib/govuk_tech_docs/version.rb b/lib/govuk_tech_docs/version.rb
index 50d2437f..d0a98eda 100644
--- a/lib/govuk_tech_docs/version.rb
+++ b/lib/govuk_tech_docs/version.rb
@@ -1,3 +1,3 @@
 module GovukTechDocs
-  VERSION = "4.1.2".freeze
+  VERSION = "4.2.0".freeze
 end