diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc4ab77..4646e54 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [1.9.1] - 2024-11-04
+### Changed
+- Pyincore 1.20.1 for IN-CORE release 5.5.1 [#134](https://github.com/IN-CORE/incore-lab/issues/134)
+
 ## [1.9.0] - 2024-10-23
 ### Changed
 - Hub containers versioning has been updated to use the changelog [#127](https://github.com/IN-CORE/incore-lab/issues/127)
diff --git a/lab/config.yml b/lab/config.yml
index 9a9d765..538b2c9 100644
--- a/lab/config.yml
+++ b/lab/config.yml
@@ -4,7 +4,7 @@ author: "Yong Wook Kim"
 Channel: "in-core"
 #Channel: "in-core/label/rc"
 # version form must be "x.x.x"
-INCORE_VERSION: "5.3.1"
-PyIncore: "1.20.0"
+INCORE_VERSION: "5.5.1"
+PyIncore: "1.20.1"
 PyIncore-Viz: "1.11.0"
 PyIncore-Data: "0.7.0"