diff --git a/python/click/README b/python/click/README
index 335070ddc9..f454dc3642 100644
--- a/python/click/README
+++ b/python/click/README
@@ -9,6 +9,8 @@ It aims to make the process of writing command line tools quick and
 fun while also preventing any frustration caused by the inability to
 implement an intended CLI API.
 
+NOTE: click-8.1.x is the last version to support python-3.9
+
 NOTE:
 -Use click-legacy7 if you need click<=8 and/or python2 support