diff --git a/CHANGELOG.md b/CHANGELOG.md
index b7a632a..c209cd5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+### Fixed
+
+- Fix a bug with Twig 3.9.0 ([#23](https://github.com/studiometa/twig-toolkit/pull/23))
+
 ## v1.3.5 (2023-07-13)
 
 ### Fixed