diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92d34cd..ae07cc9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 See also: [Github Release Page](https://github.com/enpaul/peewee-plus/releases).
 
+## Version 1.1.1
+
+View this release on: [Github](https://github.com/enpaul/peewee-plus/releases/tag/1.1.1),
+[PyPI](https://pypi.org/project/peewee-plus/1.1.1/)
+
+- Fix nullable enums raising an `IntegrityError` when value is `None` (#1)
+
 ## Version 1.1.0
 
 View this release on: [Github](https://github.com/enpaul/peewee-plus/releases/tag/1.1.0),