diff --git a/hkdf/CHANGELOG.md b/hkdf/CHANGELOG.md
index 814c9b3..4de5e07 100644
--- a/hkdf/CHANGELOG.md
+++ b/hkdf/CHANGELOG.md
@@ -5,6 +5,9 @@ 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).
 
 ## 0.13.0 (unreleased)
+### Added
+- Implement `kdf::Kdf` for `GenericHkdfExtract` ([#173])
+
 ### Changed
 - Removed `std` crate feature ([#105])
 - Bump MSRV to 1.85 and edition to 2024 ([#114])
@@ -14,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#105]: https://github.com/RustCrypto/KDFs/pull/105
 [#114]: https://github.com/RustCrypto/KDFs/pull/114
 [#154]: https://github.com/RustCrypto/KDFs/pull/154
+[#173]: https://github.com/RustCrypto/KDFs/pull/173
 
 ## 0.12.3 (2022-02-17)
 ### Fixed