diff --git a/CHANGES.rst b/CHANGES.rst
index 7499c5d1..f09f526a 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -66,7 +66,7 @@ New features:
 - Test compatibility with Python 3.12
 - Add function ``icalendar.use_pytz()``.
 - Add `sphinx-autobuild` for `livehtml` Makefile target.
-- Add pull request preview on Read the Docs.
+- Add pull request preview on Read the Docs, building only on changes to documentation-related files.
 
 Bug fixes: