diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8338fa82b..274d5442b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Fixed
 
 * Add additional error handling for exceptions raised when processing PSS queue, and MHS queue messages.
-* Fix bug in some SQL statement which caused excessively large amounts of data to be returned, sometimes resulting in a PostgresSQL Out of Memory error.
+* Fix bug in some SQL statements which caused excessively large amounts of data to be returned, sometimes resulting in 
+a PostgresSQL Out of Memory error.
+* Fix invalid state transition bug which caused the adaptor to move from a failed state to an in-progress state when a 
+positive acknowledgement was received.  
 
 ## [0.15] - 2023-10-24