diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e48eb09..e0000c39 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.5.0] - 2022-01-04
+
+### Added
+
+- Support ONNX Runtime v1.9.0.
+
 ## [0.4.0] - 2021-09-24
 
 ### Added
@@ -31,7 +37,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Support ONNX Runtime v1.7.
 
-[Unreleased]: https://github.com/furiosa-ai/onnxrt-sys/compare/0.4.0...HEAD
+[Unreleased]: https://github.com/furiosa-ai/onnxrt-sys/compare/0.5.0...HEAD
+[0.5.0]: https://github.com/furiosa-ai/onnxrt-sys/releases/tag/0.5.0
 [0.4.0]: https://github.com/furiosa-ai/onnxrt-sys/releases/tag/0.4.0
 [0.3.0]: https://github.com/furiosa-ai/onnxrt-sys/releases/tag/0.3.0
 [0.2.0]: https://github.com/furiosa-ai/onnxrt-sys/releases/tag/0.2.0
diff --git a/Cargo.toml b/Cargo.toml
index f4c7998c..90a6ec6f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "onnxrt-sys"
-version = "0.4.0"
+version = "0.5.0"
 authors = ["FuriosaAI Inc."]
 description = "OnnxRt-sys provides low-level Rust bindings to the C API for Microsoft's ONNX Runtime."
 license = "MIT OR Apache-2.0"
@@ -8,8 +8,8 @@ readme = "README.md"
 repository = "https://github.com/furiosa-ai/onnxrt-sys"
 keywords = ["onnx", "neuralnetworks", "ffi", "bindings"]
 categories = ["science", "external-ffi-bindings"]
-documentation = "https://furiosa-ai.github.io/onnxrt-sys/0.4.0/onnxrt-sys"
-edition = "2018"
+documentation = "https://furiosa-ai.github.io/onnxrt-sys/0.5.0/onnxrt-sys"
+edition = "2021"
 
 [features]
 default = []
diff --git a/README.md b/README.md
index e45434ea..f850a3b8 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,10 @@
 # OnnxRt-sys
 
 [![build status](https://github.com/furiosa-ai/onnxrt-sys/actions/workflows/build.yml/badge.svg)](https://github.com/furiosa-ai/onnxrt-sys/actions/workflows/build.yml?query=branch%3Amain)
-[![docs](https://img.shields.io/badge/docs-0.4.0-blue.svg)](https://furiosa-ai.github.io/onnxrt-sys/0.4.0/onnxrt_sys/)
+[![docs](https://img.shields.io/badge/docs-0.5.0-blue.svg)](https://furiosa-ai.github.io/onnxrt-sys/0.5.0/onnxrt_sys/)
 
 OnnxRt-sys provides low-level Rust bindings to [the C API] for Microsoft's
-[ONNX Runtime] v1.8.1.
+[ONNX Runtime] v1.9.0.
 
 [the C API]: https://www.onnxruntime.ai/docs/reference/api/c-api.html
 [ONNX Runtime]: https://www.onnxruntime.ai/
@@ -13,7 +13,7 @@ OnnxRt-sys provides low-level Rust bindings to [the C API] for Microsoft's
 
 ### Rust
 
-This program targets the latest stable version of Rust 1.47.0 or later.
+This program targets the latest stable version of Rust 1.56.1 or later.
 
 ## Usage
 
@@ -21,7 +21,7 @@ Add this to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-onnxrt-sys = { git = "https://github.com/furiosa-ai/onnxrt-sys", tag = "0.4.0" }
+onnxrt-sys = { git = "https://github.com/furiosa-ai/onnxrt-sys", tag = "0.5.0" }
 ```
 
 ## Example
diff --git a/rustfmt.toml b/rustfmt.toml
index c13d3e32..65d48b6b 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,2 +1,2 @@
-edition = "2018"
+edition = "2021"
 use_small_heuristics = "Max"
diff --git a/src/lib.rs b/src/lib.rs
index 4900c29b..006251dc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,4 @@
-#![doc(html_root_url = "https://furiosa-ai.github.io/onnxrt-sys/0.4.0/onnxrt_sys")]
+#![doc(html_root_url = "https://furiosa-ai.github.io/onnxrt-sys/0.5.0/onnxrt_sys")]
 #![allow(non_upper_case_globals)]
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]