diff --git a/CHANGES.md b/CHANGES.md
index 6430e856..1987d1c2 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,6 +4,7 @@
 
 - [pull #519] Add support for custom extras
 - [pull #519] Drop Python 3.5 support
+- [pull #568] Add `prepend` arg to toc extra (#397)
 
 
 ## python-markdown2 2.4.13