diff --git a/README.rst b/README.rst
index 0a1bbb64..bcdb9cc1 100644
--- a/README.rst
+++ b/README.rst
@@ -174,6 +174,7 @@ Inspired by `Keepachangelog.com <http://keepachangelog.com/>`__.
 - Unreleased - Breathe v4.29.1
 
   - Splice out parameter direction in field lists. #675
+  - Fixes for Sphinx v4. #676
 
 - 2021-04-09 - Breathe v4.29.0