diff --git a/packages/core-components/api-report.md b/packages/core-components/api-report.md
index 7fd706db43..5fe484c4b7 100644
--- a/packages/core-components/api-report.md
+++ b/packages/core-components/api-report.md
@@ -1128,6 +1128,7 @@ export type SidebarSubmenuItemProps = {
   icon?: IconComponent;
   dropdownItems?: SidebarSubmenuItemDropdownItem[];
   exact?: boolean;
+  expanded?: boolean;
 };
 
 // @public