diff --git a/CHANGELOG.md b/CHANGELOG.md
index b987320..c8c5fac 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]
 
+## [0.0.1a4] - 2025-02-07
+
 ### Fixed
 
 - Pydantic model validation error when querying Project and listing Organizations.
@@ -31,7 +33,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Pre-release of the Cleanlab Codex Python client.
 
-[Unreleased]: https://github.com/cleanlab/cleanlab-codex/compare/v0.0.1a3...HEAD
+[Unreleased]: https://github.com/cleanlab/cleanlab-codex/compare/v0.0.1a4...HEAD
+[0.0.1a4]: https://github.com/cleanlab/cleanlab-codex/compare/v0.0.1a3...v0.0.1a4
 [0.0.1a3]: https://github.com/cleanlab/cleanlab-codex/compare/v0.0.1a2...v0.0.1a3
 [0.0.1a2]: https://github.com/cleanlab/cleanlab-codex/compare/v0.0.1a1...v0.0.1a2
 [0.0.1a1]: https://github.com/cleanlab/cleanlab-codex/compare/267a93300f77c94e215d7697223931e7926cad9e...v0.0.1a1
\ No newline at end of file
diff --git a/src/cleanlab_codex/__about__.py b/src/cleanlab_codex/__about__.py
index 254dc00..de39b8f 100644
--- a/src/cleanlab_codex/__about__.py
+++ b/src/cleanlab_codex/__about__.py
@@ -1,2 +1,2 @@
 # SPDX-License-Identifier: MIT
-__version__ = "0.0.1a3"
+__version__ = "0.0.1a4"