diff --git a/CHANGELOG.md b/CHANGELOG.md
index ccfb147..43f4052 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ All notable changes to `whisper_cpp` will be documented in this file. The
 format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/);
 this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [0.5.1] - 2026-11-12
 
 ### Changed
 - Requires `rustler_precompiled` `~> 0.10.0` (was `~> 0.9.0`). It removes
diff --git a/mix.exs b/mix.exs
index 9ef6b8b..5c704a5 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule WhisperCpp.MixProject do
   use Mix.Project
 
-  @version "0.5.0"
+  @version "0.5.1"
   @source_url "https://github.com/rubas/whisper_cpp"
 
   @spec project() :: keyword()