diff --git a/CHANGELOG.md b/CHANGELOG.md
index faecd10dc5..f5232fce04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [v0.5.6] - 2021-03-03
+
+- **Security** Use latest security patched heapless
+
 ## [v0.5.5] - 2020-08-27
 
 - Includes the previous soundness fix.
@@ -328,7 +332,8 @@ Yanked due to a soundness issue in `init`; the issue has been mostly fixed in v0
 
 - Initial release
 
-[Unreleased]: https://github.com/rtic-rs/cortex-m-rtic/compare/v0.5.5...HEAD
+[Unreleased]: https://github.com/rtic-rs/cortex-m-rtic/compare/v0.5.6...HEAD
+[v0.5.6]: https://github.com/rtic-rs/cortex-m-rtic/compare/v0.5.5...v0.5.6
 [v0.5.5]: https://github.com/rtic-rs/cortex-m-rtic/compare/v0.5.4...v0.5.5
 [v0.5.4]: https://github.com/rtic-rs/cortex-m-rtic/compare/v0.5.3...v0.5.4
 [v0.5.3]: https://github.com/rtic-rs/cortex-m-rtic/compare/v0.5.2...v0.5.3
diff --git a/Cargo.toml b/Cargo.toml
index b9aa71de63..692b3ff8c0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ license = "MIT OR Apache-2.0"
 name = "cortex-m-rtic"
 readme = "README.md"
 repository = "https://github.com/rtic-rs/cortex-m-rtic"
-version = "0.5.5"
+version = "0.5.6"
 
 [lib]
 name = "rtic"