diff --git a/CHANGELOG.md b/CHANGELOG.md
index d228ada..7b2da7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Remove extra characters from line break check. Leave only 0x0A & 0x0D, as in
   CommonMark spec, #581.
 
+
+## [9.0.1] - 2019-07-12
+### Fixed
+- Fix possible corruption of open/close tag levels, #466
+
+
 ## [9.0.0] - 2019-07-09
 ### Changed
 - Updated CM spec compatibility to 0.29.