diff --git a/CHANGELOG.md b/CHANGELOG.md
index 86732e0..af899e5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-[Unreleased]: https://github.com/trussed-dev/ctap-types/compare/0.3.1...HEAD
+[Unreleased]: https://github.com/trussed-dev/ctap-types/compare/0.3.2...HEAD
+
+-
+
+## [0.3.2] 2024-10-24
+
+[0.3.2]: https://github.com/trussed-dev/ctap-types/compare/0.3.1...0.3.2
+
+### Changed
+
+- Update `cbor-smol` dependency to v0.5.0
 
 ## [0.3.1] 2024-10-18
 
diff --git a/Cargo.toml b/Cargo.toml
index 33c4f69..e3a43cf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ctap-types"
-version = "0.3.1"
+version = "0.3.2"
 authors = ["Nicolas Stalder <n@stalder.io>", "The Trussed developers"]
 edition = "2021"
 license = "Apache-2.0 OR MIT"
@@ -10,7 +10,7 @@ repository = "https://github.com/trussed-dev/ctap-types"
 [dependencies]
 arbitrary = { version = "1.3.2", features = ["derive"], optional = true }
 bitflags = "1.3"
-cbor-smol = "0.4"
+cbor-smol = { version = "0.5", features = ["heapless-bytes-v0-3"] }
 cosey = "0.3.1"
 delog = "0.1"
 heapless = { version = "0.7", default-features = false, features = ["serde"] }
diff --git a/src/ctap2.rs b/src/ctap2.rs
index 3ff7258..8136be2 100644
--- a/src/ctap2.rs
+++ b/src/ctap2.rs
@@ -242,8 +242,7 @@ impl<'a, A: SerializeAttestedCredentialData, E: serde::Serialize> AuthenticatorD
 
         // the extensions data
         if let Some(extensions) = self.extensions.as_ref() {
-            cbor_smol::cbor_serialize_extending_bytes(extensions, &mut bytes)
-                .map_err(|_| Error::Other)?;
+            cbor_smol::cbor_serialize_to(extensions, &mut bytes).map_err(|_| Error::Other)?;
         }
 
         Ok(bytes)