diff --git a/packages/react-day-picker/CHANGELOG.md b/packages/react-day-picker/CHANGELOG.md
index 4e9ebcbc91..afb5e9dad5 100644
--- a/packages/react-day-picker/CHANGELOG.md
+++ b/packages/react-day-picker/CHANGELOG.md
@@ -3,6 +3,7 @@
 ### v8.1.3
 
 - fix: `onDayClick` called twice in selection mode, by [@gpbl](https://github.com/gpbl) in [#1520](https://github.com/gpbl/react-day-picker/pull/1520)
+- changed: accept `undefined` for the modifier props [@gpbl](https://github.com/gpbl) in [#1521](https://github.com/gpbl/react-day-picker/pull/1521)
 
 ### v8.1.2