diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8cb4066..b4497dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0](https://github.com/microsoft/regorus/compare/regorus-v0.3.0...regorus-v0.4.0) - 2025-03-14
+
+### Fixed
+- [**breaking**] Update ruby json dependency ([#381](https://github.com/microsoft/regorus/pull/381))
+- [**breaking**] Remove ring dependency ([#380](https://github.com/microsoft/regorus/pull/380))
+- [**breaking**] Remove sha1 dependency ([#379](https://github.com/microsoft/regorus/pull/379))
+
+### Other
+- Specify optimization flags ([#378](https://github.com/microsoft/regorus/pull/378))
+
 ## [0.3.0](https://github.com/microsoft/regorus/compare/regorus-v0.2.8...regorus-v0.3.0) - 2025-03-10
 
 ### Added
diff --git a/Cargo.toml b/Cargo.toml
index 4e76e73..d386281 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ members = [
 [package]
 name = "regorus"
 description = "A fast, lightweight Rego (OPA policy language) interpreter"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 license-file = "LICENSE"
 repository = "https://github.com/microsoft/regorus"