diff --git a/ibllib/__init__.py b/ibllib/__init__.py
index 05e6e1a90..f890e2d0e 100644
--- a/ibllib/__init__.py
+++ b/ibllib/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "2.13.4"
+__version__ = "2.13.5"
 import warnings
 
 from ibllib.misc import logger_config
diff --git a/release_notes.md b/release_notes.md
index 93b957a32..a6d4b8fdc 100644
--- a/release_notes.md
+++ b/release_notes.md
@@ -1,4 +1,7 @@
 ## Release Notes 2.13
+## Release Notes 2.13.4 2022-07-27
+- Hotfix: pseudo session biased generation contrast distribution
+
 ## Release Notes 2.13.4 2022-07-22
 - Hotfix: Density displays had unexisting colormaps in snapshots QC tasks
 - Generate extra training plots based on psychometric curves