diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93a4556c..ab925304 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+...
+
+## 2.2.0
+
 ### Performance improvements
 
 * Get rid of unused Rails Engine class definition ([#247](https://github.com/rubyconfig/config/pull/247))
diff --git a/lib/config/version.rb b/lib/config/version.rb
index c533c201..c69300a4 100644
--- a/lib/config/version.rb
+++ b/lib/config/version.rb
@@ -1,3 +1,3 @@
 module Config
-  VERSION = '2.1.0'.freeze
+  VERSION = '2.2.0'.freeze
 end