diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6b317479..bde6de01b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased][latest]
+### Fixed
+- Add server middleware signatures to type declarations (#540, @getabetterpic)
 
 ## [3.0.3] - 2021-02-02
 ### Fixed