diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2b27498a..e01e31d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [v4.3.1](https://github.com/voxpupuli/json-schema/tree/v4.3.1) (2024-07-12)
+
+[Full Changelog](https://github.com/voxpupuli/json-schema/compare/v4.3.0...v4.3.1)
+
+**Fixed bugs:**
+
+- Add missing require 'stringio' [\#512](https://github.com/voxpupuli/json-schema/pull/512) ([jmarrec](https://github.com/jmarrec))
+
 ## [v4.3.0](https://github.com/voxpupuli/json-schema/tree/v4.3.0) (2024-03-26)
 
 [Full Changelog](https://github.com/voxpupuli/json-schema/compare/v4.2.0...v4.3.0)
diff --git a/VERSION.yml b/VERSION.yml
index ec5ecd36..5f6ebd59 100644
--- a/VERSION.yml
+++ b/VERSION.yml
@@ -1,3 +1,3 @@
 major: 4
 minor: 3
-patch: 0
+patch: 1