diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85afee43..a3416333 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,8 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 ### Features
 ### Enhancements
 ### Bug Fixes
+- Remove useCase and defaultParams field in WorkflowRequest ([#758](https://github.com/opensearch-project/flow-framework/pull/758))
+
 ### Infrastructure
 ### Documentation
 ### Maintenance