diff --git a/CHANGES.md b/CHANGES.md
index a83a4df0023..7ce80c12453 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -7,6 +7,8 @@
 <!-- Include any especially major or disruptive changes here -->
 
 - Black now officially supports Python 3.13 (#4436)
+- Black will issue an error when used with Python 3.12.5, due to a memory safety issue
+  in Python 3.12.5. Please use Python 3.12.6 or Python 3.12.4 instead. (#4447)
 
 ### Stable style