diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6b98face..ed680711 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Changed
+- Update `parking_lot` dependency to `0.11`. [#1010](https://github.com/PyO3/pyo3/pull/1010)
+
 ## [0.11.0] - 2020-06-28
 ### Added
 - Support stable versions of Rust (>=1.39). [#969](https://github.com/PyO3/pyo3/pull/969)