diff --git a/actix-http/CHANGES.md b/actix-http/CHANGES.md
index 23ebe43e..dd697718 100644
--- a/actix-http/CHANGES.md
+++ b/actix-http/CHANGES.md
@@ -6,6 +6,7 @@
 
 - Add `header::CLEAR_SITE_DATA` constant.
 - Add `Extensions::get_or_insert[_with]()` methods.
+- Add feature-gated `serde::Serialize` and `serde::Deserialize` implementations for `CloseCode` and `CloseReason`
 
 ### Changed