diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5fd689..f75147e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project uses [Semantic Versioning](https://semver.org/spec/v2.0.0.html)
 
 ## [Unreleased]
 
+## [0.5.1] - 2026-09-21
+
 ### Fixed
 
 - Accept optional request metadata on session-era `initialize` requests in the
@@ -332,7 +334,8 @@ and this project uses [Semantic Versioning](https://semver.org/spec/v2.0.0.html)
 - Added builtin and external dataplane routing through reusable Docker Compose
   overlays.
 
-[Unreleased]: https://github.com/contextforge-org/contextforge-dev-tools/compare/v0.5.0...HEAD
+[Unreleased]: https://github.com/contextforge-org/contextforge-dev-tools/compare/v0.5.1...HEAD
+[0.5.1]: https://github.com/contextforge-org/contextforge-dev-tools/compare/v0.5.0...v0.5.1
 [0.5.0]: https://github.com/contextforge-org/contextforge-dev-tools/compare/v0.4.0...v0.5.0
 [0.4.0]: https://github.com/contextforge-org/contextforge-dev-tools/compare/v0.3.1...v0.4.0
 [0.3.1]: https://github.com/contextforge-org/contextforge-dev-tools/compare/v0.3.0...v0.3.1
diff --git a/Cargo.lock b/Cargo.lock
index 72751d7..27cdae0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -201,7 +201,7 @@ dependencies = [
 
 [[package]]
 name = "cf-integration"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "anyhow",
  "aws-lc-rs",
diff --git a/Cargo.toml b/Cargo.toml
index b84ab1e..5964071 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cf-integration"
-version = "0.5.0"
+version = "0.5.1"
 edition = "2024"
 rust-version = "1.97"
 license = "Apache-2.0"