diff --git a/CHANGES.md b/CHANGES.md
index e9d5196..ac7775c 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,5 @@
-unreleased
-----------
+2.12.1 (2023-04-21)
+-------------------
 
 * Fix regression with unit qualification when a `Unit` module is in scope with
   no `()` constructor (#429, fixes #428, @emillon)