diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5e12ee3..cacb5519 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## 8.4.2
+
+- Minor refactor to `curb` implementation.
+- Updated `yard` development dependency to `> 0.9.42`.
+- Fix `multi_json` deprecation warnings. Some deprecations [were introduced in `multi_json` 1.21.0](https://github.com/sferik/multi_json/blob/main/CHANGELOG.md#1210). Pull Request: [#112](https://github.com/elastic/elastic-transport-ruby/pull/112).
+- Reduced gem size. Pull Request: [#114](https://github.com/elastic/elastic-transport-ruby/pull/114).
+- Addresses duplicate `content-type` header in Manticore. Pull Request: [#115](https://github.com/elastic/elastic-transport-ruby/pull/115).
+
 ## 8.4.1
 
 - Moves `require 'timeout'` to the classes that use it. Closed [#79](https://github.com/elastic/elastic-transport-ruby/issues/79).
diff --git a/lib/elastic/transport/version.rb b/lib/elastic/transport/version.rb
index fa5abc9b..492ad913 100644
--- a/lib/elastic/transport/version.rb
+++ b/lib/elastic/transport/version.rb
@@ -17,6 +17,6 @@
 
 module Elastic
   module Transport
-    VERSION = '8.4.1'.freeze
+    VERSION = '8.4.2'.freeze
   end
 end