diff --git a/CHANGELOG.md b/CHANGELOG.md
index f62097289874ae83a222fd42eb74143e9e2dfa55..00622f2f603cb2bedf73b9443c733b3ee101fb30 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Fixed
 
 * Fixed thumbnails producing the wrong result.
+* Fixed `expireAfterDays` for thumbnails potentially deleting media under some conditions.
 
 ### Changed