diff --git a/CHANGELOG.md b/CHANGELOG.md
index a21bd55..f267740 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.27.0 - 2025-11-07
+- Update to PyO3 0.27
+
 ## 0.26.0 - 2025-08-30
 
 ### Packaging
diff --git a/Cargo.toml b/Cargo.toml
index ce406ad..4a714a3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pythonize"
-version = "0.26.0"
+version = "0.27.0"
 authors = ["David Hewitt <1939362+davidhewitt@users.noreply.github.com>"]
 edition = "2021"
 rust-version = "1.74"