diff --git a/CHANGELOG.md b/CHANGELOG.md
index 57ddd16..07be428 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org).
 
+## [2.15.5] - 2023-06-01
+
+### Changed
+* build_partitioned_indexes now accepts an optional path to a (pre-trained) index. If provided,
+this index will be used to build all partitioned indexes
+
 ## [2.15.4] - 2022-12-23
 
 ### Changed
diff --git a/autofaiss/version.py b/autofaiss/version.py
index 80058e4..ba5ca8c 100644
--- a/autofaiss/version.py
+++ b/autofaiss/version.py
@@ -1,6 +1,6 @@
 # pylint: disable=all
 
-__version__ = "2.15.4"
+__version__ = "2.15.5"
 __author__ = "Criteo"