diff --git a/CHANGES.md b/CHANGES.md
index 5036ea25..f109a248 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,8 @@
+2.9.1 (2022-03-28)
+------------------
+
+* Add support for OCaml 5.0 (#371 @favonia)
+
 2.9.0 (2021-12-09)
 ------------------