diff --git a/CHANGES.rst b/CHANGES.rst
index cf8a924..3025e13 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -9,6 +9,11 @@
 Changes
 =======
 
+Version 4.0.1 (release 2023-10-09)
+----------------------------------
+
+- aggregations: ensure events are aggregated only once
+
 Version 4.0.0 (release 2023-10-03)
 ----------------------------------
 
diff --git a/invenio_stats/__init__.py b/invenio_stats/__init__.py
index 0e03639..3f57c44 100644
--- a/invenio_stats/__init__.py
+++ b/invenio_stats/__init__.py
@@ -440,7 +440,7 @@ def register_queries():
 from .ext import InvenioStats
 from .proxies import current_stats
 
-__version__ = "4.0.0"
+__version__ = "4.0.1"
 
 __all__ = (
     "__version__",