diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76e8234d7..0e94773e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@ Main changes to this code/ project are 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/spec/v2.0.0.html).
 
+## Clinica 0.5.5
+
+### Fixed
+   [`pet-linear`] fix bug in `pet-linear`which had the pipeline not terminate 
+
+
 ## Clinica 0.5.4
 
 ### Added
diff --git a/pyproject.toml b/pyproject.toml
index 2632d1ee2..3f184d0c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "clinica"
-version = "0.5.4"
+version = "0.5.5"
 description = "Software platform for clinical neuroimaging studies"
 license = "MIT"
 authors = ["ARAMIS Lab"]