diff --git a/CHANGELOG.md b/CHANGELOG.md
index fbbf0072..f63070a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 with one exception: small features that only simplify access to certain parts of the
 ZOS-API can also be added in patch releases.
 
-## [Unreleased]
+## [[1.1.1]](https://github.com/MREYE-LUMC/ZOSPy/releases/tag/v1.1.1) - 2023-09-25
 
 ### Added