diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d6667a95..bc3245270 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ To benefit the much shorter update period enabled by differential updates, you m
 
 ## Fixes / changes
 
+- [Ensure CSSTree does not hold a reference onto last parsed string](https://github.com/gorhill/uBlock/commit/1dba557c9a)
 - [Lower maximum Expires value to 4h](https://github.com/gorhill/uBlock/commit/2360bc02f3)
 - [Properly reset needle length in unserialized buffer](https://github.com/gorhill/uBlock/commit/8ed1ad9c9d)
 - [Add additional flags to regional lists](https://github.com/gorhill/uBlock/commit/0962366524) (by @DandelionSprout)