diff --git a/CHANGELOG.md b/CHANGELOG.md
index b71da4ba..a6a363cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,8 +8,11 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
-- Updated nix to allow both version `0.22` or `0.23`.
-- Add PEC support for SMBus compatible adapters
+
+## [v0.5.1] - 2021-11-22
+
+- Updated nix to version `0.23`.
+- Add PEC support for SMBus compatible adapters.
 - Add `LinuxI2CDevice::force_new()` to open the device without checking if the address is bound to a driver.
 
 ## [v0.5.0] - 2021-09-21
@@ -22,6 +25,6 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 The changelog for previous versions was not recorded.
 
-[Unreleased]: https://github.com/rust-embedded/rust-i2cdev/compare/0.5.0...HEAD
+[Unreleased]: https://github.com/rust-embedded/rust-i2cdev/compare/0.5.1...HEAD
+[v0.5.1]: https://github.com/rust-embedded/rust-i2cdev/compare/0.5.0...0.5.1
 [v0.5.0]: https://github.com/rust-embedded/rust-i2cdev/compare/0.4.0...0.5.0
-
diff --git a/Cargo.toml b/Cargo.toml
index 74406819..0a1f792e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "i2cdev"
-version = "0.5.0" # remember to update html_root_url
+version = "0.5.1"
 authors = ["Paul Osborne <osbpau@gmail.com>"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rust-embedded/rust-i2cdev"
@@ -18,8 +18,7 @@ Provides API for safe access to Linux i2c device interface.
 libc = "0.2"
 bitflags = "1.3"
 byteorder = "1"
-nix = ">= 0.22, < 0.24"
+nix = "0.23"
 
 [dev-dependencies]
 docopt = "1"
-
diff --git a/src/lib.rs b/src/lib.rs
index a97bf3d1..e845e0df 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -97,7 +97,6 @@
 #![crate_name = "i2cdev"]
 #![crate_type = "lib"]
 #![deny(missing_docs)]
-#![doc(html_root_url = "https://docs.rs/i2cdev/0.5.0")]
 
 #[macro_use]
 extern crate bitflags;