diff --git a/CHANGES.md b/CHANGES.md
index 4283b966..cc52c581 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -5,6 +5,7 @@
 - [pull #590] Fix underscores within bold text getting emphasized (#589)
 - [pull #591] Add Alerts extra
 - [pull #595] Fix img alt text being processed as markdown (#594)
+- [pull #596] Add language to HTML output in pygments code blocks (#379)
 
 
 ## python-markdown2 2.5.0