diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80a69ea..e7e7f7b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.1.1] - 2023-10-17
+
+### Changed
+
+- Typing improvements to the PHIR model.
+- Correct a mistake in PHIR spec example.
+
 ## [0.1.0] - 2023-10-16
 
 First release.