diff --git a/CHANGES.rst b/CHANGES.rst
index f58f5bbb..feed571d 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -7,6 +7,7 @@ Changelog
 Minor changes:
 
 - Add funding information
+- Make documentation build with Python 3.12
 - Update windows to olson conversion for Greenland Standard Time
 - Extend examples in Usage with alarm and recurrence
 - Document how to serve the built documentation to view with the browser
diff --git a/tox.ini b/tox.ini
index 54e7050e..7572fe7a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,6 +19,7 @@ commands =
 [testenv:docs]
 deps =
     -r {toxinidir}/requirements_docs.txt
+    setuptools
 changedir = docs
 allowlist_externals = make
 commands =