diff --git a/CHANGELOG.md b/CHANGELOG.md
index c115de4..cb4fdbf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.2] - 2024-11-01
+
+### Fixed
+
+- Validate that the encoded hash passed to Argon2id::Password.new is a
+  null-terminated C string, raising an ArgumentError if it contains extra null
+  bytes
+
 ## [0.1.1] - 2024-11-01
 
 ### Added
@@ -24,5 +32,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   reference C implementation of Argon2, the password-hashing function that won
   the Password Hashing Competition.
 
+[0.1.2]: https://github.com/mudge/argon2id/releases/tag/v0.1.2
 [0.1.1]: https://github.com/mudge/argon2id/releases/tag/v0.1.1
 [0.1.0]: https://github.com/mudge/argon2id/releases/tag/v0.1.0
diff --git a/README.md b/README.md
index 367235d..c30795e 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ function that won the 2015 [Password Hashing Competition][].
 
 [![Build Status](https://github.com/mudge/argon2id/actions/workflows/tests.yml/badge.svg?branch=main)](https://github.com/mudge/argon2id/actions)
 
-**Current version:** 0.1.1  
+**Current version:** 0.1.2  
 **Bundled Argon2 version:** libargon2.1 (20190702)
 
 ```ruby
diff --git a/lib/argon2id/version.rb b/lib/argon2id/version.rb
index 98981bf..59746e4 100644
--- a/lib/argon2id/version.rb
+++ b/lib/argon2id/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Argon2id
-  VERSION = "0.1.1"
+  VERSION = "0.1.2"
 end