diff --git a/CHANGES.rst b/CHANGES.rst
index 8de9ffe6..34025106 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,10 @@
 Changelog
 =========
 
+0.5.0 (2022-05-24)
+------------------
+* Add support for publicly readable taxii 2 collections
+
 0.4.0 (2022-05-20)
 ------------------
 * Move next_param handling into `OpenTAXII2PersistenceAPI`
diff --git a/opentaxii/_version.py b/opentaxii/_version.py
index 287b6a6d..42536e5c 100644
--- a/opentaxii/_version.py
+++ b/opentaxii/_version.py
@@ -3,4 +3,4 @@
 This module defines the package version for use in __init__.py and setup.py.
 """
 
-__version__ = '0.4.0'
+__version__ = '0.5.0'