diff --git a/schemas/cna/aws-rds-config-1.yml b/schemas/cna/aws-rds-config-1.yml
index 058f7a48..c4683a73 100644
--- a/schemas/cna/aws-rds-config-1.yml
+++ b/schemas/cna/aws-rds-config-1.yml
@@ -72,3 +72,4 @@ required:
 - max_allocated_storage
 - engine
 - engine_version
+- username