diff --git a/Cargo.lock b/Cargo.lock
index 8397fc26..d3b21087 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,7 +4,7 @@ version = 3
 
 [[package]]
 name = "argon2"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "base64ct",
  "blake2",
diff --git a/argon2/CHANGELOG.md b/argon2/CHANGELOG.md
index 5749fa3c..416f7483 100644
--- a/argon2/CHANGELOG.md
+++ b/argon2/CHANGELOG.md
@@ -5,6 +5,24 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.5.1 (2023-07-13)
+### Added
+- Provide `std::error::Error::source` for `argon2::Error` ([#379])
+- `ParamsBuilder::context` ([#400])
+- Enable `password-hash/alloc` when `alloc` feature is enabled ([#422])
+- Impl `Debug` for `Argon2` ([#423])
+- `Block::new()` const initializer ([#427])
+- `Params::DEFAULT` constant ([#439])
+- Initial AVX2 SIMD optimizations ([#440])
+
+[#379]: https://github.com/RustCrypto/password-hashes/pull/379
+[#400]: https://github.com/RustCrypto/password-hashes/pull/400
+[#422]: https://github.com/RustCrypto/password-hashes/pull/422
+[#423]: https://github.com/RustCrypto/password-hashes/pull/423
+[#427]: https://github.com/RustCrypto/password-hashes/pull/427
+[#439]: https://github.com/RustCrypto/password-hashes/pull/439
+[#440]: https://github.com/RustCrypto/password-hashes/pull/440
+
 ## 0.5.0 (2023-03-04)
 ### Added
 - Key derivation usage example ([#366])
diff --git a/argon2/Cargo.toml b/argon2/Cargo.toml
index ba406625..cb28616e 100644
--- a/argon2/Cargo.toml
+++ b/argon2/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "argon2"
-version = "0.5.0"
+version = "0.5.1"
 description = """
 Pure Rust implementation of the Argon2 password hashing function with support
 for the Argon2d, Argon2i, and Argon2id algorithmic variants