diff --git a/CHANGES.md b/CHANGES.md
index a63503d539a..e3e37484a59 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -34,6 +34,9 @@
 - Fix regression where Black failed to parse a multiline f-string containing another
   multiline string (#4339)
 
+- Fix regression where Black failed to parse an escaped single quote inside an f-string
+  (#4401)
+
 - Fix bug with Black incorrectly parsing empty lines with a backslash (#4343)
 
 ### Performance