diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5c336c7e..cd5092855 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## 0.2.1 (2024-02-21)
+
+### Documentation
+
+- HUGR spec copyediting ([#843](https://github.com/CQCL/hugr/pull/843))
+
+### Features
+
+- Arbitrary types in the yaml extension definition ([#839](https://github.com/CQCL/hugr/pull/839))
+
 ## 0.2.0 (2024-02-20)
 
 ### Documentation
diff --git a/Cargo.toml b/Cargo.toml
index a7d375396..21e3f31d0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "quantinuum-hugr"
-version = "0.2.0"
+version = "0.2.1"
 edition = "2021"
 rust-version = "1.75"