diff --git a/CHANGELOG.md b/CHANGELOG.md
index e721d4a..6046885 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [v0.2.2] - 2017-04-29
+
+### Added
+
+- a `__rust_allocate_zeroed` symbol as it's needed on recent nightlies.
+
 ## [v0.2.1] - 2016-11-27
 
 ### Fixed
@@ -27,6 +33,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Initial version of the allocator
 
-[Unreleased]: https://github.com/japaric/alloc-cortex-m/compare/v0.2.1...HEAD
+[Unreleased]: https://github.com/japaric/alloc-cortex-m/compare/v0.2.2...HEAD
+[v0.2.2]: https://github.com/japaric/alloc-cortex-m/compare/v0.2.1...v0.2.2
 [v0.2.1]: https://github.com/japaric/alloc-cortex-m/compare/v0.2.0...v0.2.1
 [v0.2.0]: https://github.com/japaric/alloc-cortex-m/compare/v0.1.0...v0.2.0
diff --git a/Cargo.toml b/Cargo.toml
index 264367f..b5fdaf3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ documentation = "https://docs.rs/alloc-cortex-m"
 keywords = ["arm", "cortex-m", "allocator"]
 license = "MIT OR Apache-2.0"
 name = "alloc-cortex-m"
-version = "0.2.1"
+version = "0.2.2"
 
 [dependencies]
 cortex-m = "0.1.5"