diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77ab246..9af68cc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+## 1.2.2 - 2018-07-12
 ### Changed
 - Undo deprecation of `NewProviderGroup`.
 
diff --git a/version.go b/version.go
index 5148759..2a37073 100644
--- a/version.go
+++ b/version.go
@@ -21,4 +21,4 @@
 package config // import "go.uber.org/config"
 
 // Version is the current semantic version.
-const Version = "1.2.1"
+const Version = "1.2.2"