diff --git a/CHANGELOG.md b/CHANGELOG.md
index d26ede89..f7a2e682 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,13 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 
+## [0.4.0]
+
+### Added
+
+- `3scale update` that updates existing service
+- `3scale copy` copies `backend_version`
+
 ## [0.3.0]
 
 ### Changed
diff --git a/lib/3scale_toolbox/version.rb b/lib/3scale_toolbox/version.rb
index 0ba8d25f..697a900e 100644
--- a/lib/3scale_toolbox/version.rb
+++ b/lib/3scale_toolbox/version.rb
@@ -1,3 +1,3 @@
 module ThreeScaleToolbox
-  VERSION = '0.3.0'
+  VERSION = '0.4.0'
 end