diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7b8c846db..83b9586c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to
 [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+## [0.27.0] 2023-05-05
 
 ### Changed
 
diff --git a/src/backend/tools/py.CLI/caliopen_cli/__init__.py b/src/backend/tools/py.CLI/caliopen_cli/__init__.py
index 2fe2ccff1..1e3b38a0b 100644
--- a/src/backend/tools/py.CLI/caliopen_cli/__init__.py
+++ b/src/backend/tools/py.CLI/caliopen_cli/__init__.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-__version__ = '0.23.0'
+__version__ = '0.27.0'
 
 try:
     import pkg_resources