diff --git a/CHANGELOG.md b/CHANGELOG.md
index a52b799..d7861a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## 2.3.1 (2022-07-28)
 ### Fixed
 - broken build
+- convert boolean columns to not nullable
 
 ## 2.3.0 (2022-07-24)
 ### Added