diff --git a/CHANGELOG.md b/CHANGELOG.md
index d0b165d..4ccd44b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Changelog
 
-## 0.12.0 - Unreleased
+## 0.13.0 - Unreleased
+
+## 0.12.0 - 2022-12-29
 
 - Wrap `quick_xml::XmlError` into a newtype [`#65`](https://github.com/rust-syndication/atom/pull/65)
 - Implement `std::error::Error` for `XmlError`. Mark helper traits as `pub(crate)` to prevent their accidental leakage to public API [`#66`](https://github.com/rust-syndication/atom/pull/66)
diff --git a/Cargo.toml b/Cargo.toml
index 48efd8f..a8c8d57 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "atom_syndication"
-version = "0.11.0"
+version = "0.12.0"
 authors = ["James Hurst <jh.jameshurst@gmail.com>"]
 edition = "2021"
 description = "Library for serializing the Atom web content syndication format"