diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a546ee..ff15508 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.0.21] - 2024-03-26
+
+### Added
+
+- ISO 639 Languages.
+
 ## [0.0.20] - 2024-03-21
 
 ### Changed
@@ -104,6 +110,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Base Country Model.
 - Base Currency Model.
 
+[0.0.21]: https://github.com/koldakov/pycountries/releases/tag/0.0.21
 [0.0.20]: https://github.com/koldakov/pycountries/releases/tag/0.0.20
 [0.0.19]: https://github.com/koldakov/pycountries/releases/tag/0.0.19
 [0.0.18]: https://github.com/koldakov/pycountries/releases/tag/0.0.18
diff --git a/pyproject.toml b/pyproject.toml
index 4bc64ec..743c98a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "pycountries"
-version = "0.0.20"
+version = "0.0.21"
 authors = [
   { name="Ivan Koldakov", email="ivan@koldakov.com" },
 ]
diff --git a/src/pycountries/__init__.py b/src/pycountries/__init__.py
index 3164d6d..fc65b52 100644
--- a/src/pycountries/__init__.py
+++ b/src/pycountries/__init__.py
@@ -10,7 +10,7 @@
 from pycountries.languages import Language
 from pycountries.phones import Phone
 
-__version__ = "0.0.20"
+__version__ = "0.0.21"
 __author__ = "Ivan Koldakov"
 __all__ = [
     "AmountSpecialValuesNotAllowedError",