diff --git a/CHANGELOG.md b/CHANGELOG.md
index 82ae255..d0014c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,17 +1,30 @@
 #Changelog
 
+##1.1.1
+
+- src now uses ES6
+- use gulp instead of grunt
+- setup gulp build pipeline
+- use analysis tools: JSCS, jshint
+- use consistent coding style (jQuery coding style)
+- send code coverage to coveralls.io
+- use browserify to generate distributable scripts
+- add contributing doc
+- misc meta data updates
+- add sourcemaps
+
 ##1.1.0
 
-- Added MIT license
-- Added Changelog
-- Added Grunt config
-- Added editorconfig
-- Added Tests
-- Fixed JSHint errors
-- Formatted code as per editorconfig
-- Fixed bug with conversion from year(s) to another unit
-- Make sure `Error` (type) is thrown when invalid unit is encountered
-- Added minified distributable version
-- Updated package.json
-- Added bower config
-- Added travis config
+- add MIT license
+- add Changelog
+- add Grunt config
+- add editorconfig
+- add Tests
+- fix JSHint errors
+- format code as per editorconfig
+- fix bug with conversion from year(s) to another unit
+- make sure `Error` (type) is thrown when invalid unit is encountered
+- add minified distributable version
+- update package.json
+- add bower config
+- add travis config