diff --git a/CHANGELOG.md b/CHANGELOG.md
index c445b5c..2087829 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # push-to-registry Changelog
 
+## v2.2
+- Make input `username` and `password` optional, so that user can skip if they are already logged in to container image registry.   
+
 ## v2.1.1
 - Add output message if input `tags` is not provided
 - Modify output message if tag(s) are not found