diff --git a/CHANGES.rst b/CHANGES.rst
index eb4fc525..3eaa0919 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,12 @@
 CHANGELOG
 =========
 
+0.9.33 (2023-06-16)
+-------------------
+
+* Update usage of app handler per upstream changes.
+
+
 0.9.32 (2023-06-16)
 -------------------
 
diff --git a/tailbone/_version.py b/tailbone/_version.py
index bf4c8f18..fc883fb3 100644
--- a/tailbone/_version.py
+++ b/tailbone/_version.py
@@ -1,3 +1,3 @@
 # -*- coding: utf-8; -*-
 
-__version__ = '0.9.32'
+__version__ = '0.9.33'