diff --git a/CHANGELOG.md b/CHANGELOG.md
index 30c0906e..225166e5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 # Unreleased changes
 
+_None outstanding_
+
+# 4.2.2 / 2023-10-31
+
+_**Codename:** 🎃🦇 Spooky type conversion 🦇🎃_
+
 ## Bug fixes
 
 - [#296](https://github.com/prometheus/client_ruby/pull/296) Stringify non-string job
diff --git a/lib/prometheus/client/version.rb b/lib/prometheus/client/version.rb
index bea05396..6a6d4140 100644
--- a/lib/prometheus/client/version.rb
+++ b/lib/prometheus/client/version.rb
@@ -2,6 +2,6 @@
 
 module Prometheus
   module Client
-    VERSION = '4.2.1'
+    VERSION = '4.2.2'
   end
 end