diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f282bb2..a165272a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 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]
+
+- Fix chrono-tz integration. [#452](https://github.com/async-graphql/async-graphql/pull/452)
+
 ## [2.6.5] - 2021-03-24
 
 - In websocket, if the client sends `start` before `connection_init`, the connection will be immediately disconnected and return `1011` error. [#451](https://github.com/async-graphql/async-graphql/issues/451)