CHANGELOG.markdown in image_optim_rails-0.4.0 vs CHANGELOG.markdown in image_optim_rails-0.4.1

@@ -1,8 +1,12 @@
 # ChangeLog
 
 ## unreleased
 
+## v0.4.1 (2017-07-09)
+
+* Relax `image_optim` dependency [#5](https://github.com/toy/image_optim_rails/issues/5) [@toy](https://github.com/toy)
+
 ## v0.4.0 (2017-05-31)
 
 * Use absolute path to Rails root for default options [#3](https://github.com/toy/image_optim_rails/pull/3) [@wjordan](https://github.com/wjordan)
 
 ## v0.3.0 (2017-03-13)