diff --git a/CHANGELOG.md b/CHANGELOG.md
index db46af3e..5eb0287e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Search results now respect `showDate` value when displaying article metadata ([#511](https://github.com/jpanther/congo/pull/511))
 - Adopted new Tailwind logical properties for RTL styling
 - Upgrade to Tailwind v3.3.1 ([#523](https://github.com/jpanther/congo/pull/523))
+- Upgrade to KaTeX v0.16.6 ([#538](https://github.com/jpanther/congo/pull/538))
 - Upgrade to Mermaid v9.4.3
 
 ### Fixed