diff --git a/CHANGELOG.md b/CHANGELOG.md
index f511163..bc87b54 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ 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).
 
+## [3.4.2] - 2025-07-26
+
+### Added
+
+- Adding CI tests.
+
 ## [3.4.1] - 2025-07-11
 
 ### Fixed
@@ -199,6 +205,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - Initial release.
 
+[3.4.2]: https://github.com/hyugogirubato/cbz/releases/tag/v3.4.2
 [3.4.1]: https://github.com/hyugogirubato/cbz/releases/tag/v3.4.1
 [3.4.0]: https://github.com/hyugogirubato/cbz/releases/tag/v3.4.0
 [3.3.7]: https://github.com/hyugogirubato/cbz/releases/tag/v3.3.7
diff --git a/pyproject.toml b/pyproject.toml
index ae949e4..dd21202 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "cbz"
-version = "3.4.1"
+version = "3.4.2"
 description = "CBZ simplifies creating, managing, and viewing comic book files in CBZ, CBR, and PDF formats, offering seamless packaging, metadata handling and built-in viewing capabilities."
 license = "MIT"
 authors = ["hyugogirubato <65763543+hyugogirubato@users.noreply.github.com>"]