diff --git a/CHANGELOG.md b/CHANGELOG.md
index a59abcf33..4a2fb77ee 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Switched to the new calculation engine
 - Improved the 4% rule in the _FIRE_ section
 
 ## 1.133.0 - 07.04.2022