diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ef6886..22238e7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,14 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 <!-- insertion marker -->
+## [1.8.1](https://github.com/pawamoy/markdown-exec/releases/tag/1.8.1) - 2024-04-15
+
+<small>[Compare with 1.8.0](https://github.com/pawamoy/markdown-exec/compare/1.8.0...1.8.1)</small>
+
+### Bug Fixes
+
+- Add missing CSS classes to the ANSI stylesheet ([51493f2](https://github.com/pawamoy/markdown-exec/commit/51493f255dd91f28ce6c8d7e7176ec5687e28b4a) by Timothée Mazzucotelli). [Issue-43](https://github.com/pawamoy/markdown-exec/issues/43)
+
 ## [1.8.0](https://github.com/pawamoy/markdown-exec/releases/tag/1.8.0) - 2024-01-05
 
 <small>[Compare with 1.7.0](https://github.com/pawamoy/markdown-exec/compare/1.7.0...1.8.0)</small>