diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8506b0d..f16cb25 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Release notes
 
+## 0.3.1 (2024-02-26)
+
+### Features
+
+- ToffoliBox encoding ([#28](https://github.com/CQCL/tket-json-rs/pull/28))
+
 ## 0.3.0 (2023-11-09)
 
 ### Features
diff --git a/Cargo.toml b/Cargo.toml
index 7b8c250..2fd65a0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "tket-json-rs"
-version = "0.3.0"
+version = "0.3.1"
 license = "Apache-2.0"
 edition = "2021"
 rust-version = "1.70"