diff --git a/CHANGELOG.md b/CHANGELOG.md
index df06da38..43812d70 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.45.21] - 2024-10-31
+### Fixed
+- Possible Big Number overflow
+
 ## [3.45.20] - 2024-10-31
 ### Fixed
 - Bug when accessing explorer through a custom domain