diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b7ce31..9d74d3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ project adheres to [Semantic Versioning](http://semver.org/).
 ### Changed
 
 - A subtle but thoughtful change. (Boomshakalaka, @self 🏀)
+- **Breaking change** Removed `workstation_cidr` variable, http callout and unnecessary security rule. (by @dpiddockcmp)
 
 ## [[v1.4.0](https://github.com/terraform-aws-modules/terraform-aws-eks/compare/v1.3.0...v1.4.0)] - 2018-08-02]