diff --git a/CHANGELOG.md b/CHANGELOG.md
index 42f6c08..6319487 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0] - 2024-06-25
+
 ### Removed
 
 - Removed deprecated `render` function.
@@ -65,7 +67,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 _The first release._
 
-[unreleased]: https://github.com/python-lapidary/rybak/compare/v0.3.0...HEAD
+[unreleased]: https://github.com/python-lapidary/rybak/compare/v0.4.0...HEAD
+[0.4.0]: https://github.com/python-lapidary/rybak/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/python-lapidary/rybak/compare/v0.2.1...v0.3.0
 [0.2.1]: https://github.com/python-lapidary/rybak/compare/v0.2.0...v0.2.1
 [0.2.0]: https://github.com/python-lapidary/rybak/compare/v0.1.0...v0.2.0
diff --git a/pyproject.toml b/pyproject.toml
index fb94b57..15bbc9d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "rybak"
-version = "0.3.0"
+version = "0.4.0"
 description = "Directory-tree generator library"
 authors = ["Raphael Krupinski <10319569-mattesilver@users.noreply.gitlab.com>"]
 license = "BSD-3-Clause"