diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18311d7..e2d6987 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 * Migrated codebase to V 0.3.2
+* Cron expression parser now uses bitfields instead of bool arrays
 
 ## [0.4.0](https://git.rustybever.be/vieter-v/vieter/src/tag/0.4.0)