diff --git a/docs/versionhistory.rst b/docs/versionhistory.rst
index 4d164a4e5..45a9f4283 100644
--- a/docs/versionhistory.rst
+++ b/docs/versionhistory.rst
@@ -20,6 +20,7 @@ APScheduler, see the :doc:`migration section <migration>`.
 - Fixed JSON serialization of triggers that had been used at least once
 - Fixed dialect name checks in the SQLAlchemy job store
 - Fixed JSON and CBOR serializers unable to serialize enums
+- Fixed infinite loop in CalendarIntervalTrigger with UTC timezone
 
 **4.0.0a4**