diff --git a/CHANGES.md b/CHANGES.md
index e09e925..e06907a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,7 @@
+5.2.2
+---
+* Fix race in monitor test (#129, @andersfugmann)
+
 5.2.1
 ---
 * Forward compatibility with Lwt 6.0 (#122, @andersfugmann)