diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20549b6..aaab90d 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]
 
+## [1.5.1] - 2023-12-20
+
 ### Fixed
 
 - Calling `ovni_thread_isready()` after `ovni_thread_free()` now returns 0.
@@ -176,6 +178,7 @@ are used along with some other changes.
 - First ovni release.
 
 [unreleased]: https://pm.bsc.es/gitlab/rarias/ovni/-/commits/master
+[1.5.1]: https://pm.bsc.es/gitlab/rarias/ovni/-/tags/1.5.1
 [1.5.0]: https://pm.bsc.es/gitlab/rarias/ovni/-/tags/1.5.0
 [1.4.1]: https://pm.bsc.es/gitlab/rarias/ovni/-/tags/1.4.1
 [1.4.0]: https://pm.bsc.es/gitlab/rarias/ovni/-/tags/1.4.0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4fba95d..04057a5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@
 
 cmake_minimum_required(VERSION 3.20)
 
-project(OVNI LANGUAGES C VERSION 1.5.0)
+project(OVNI LANGUAGES C VERSION 1.5.1)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")