diff --git a/packages/backend-defaults/report-alpha.api.md b/packages/backend-defaults/report-alpha.api.md
index 7e7cccc007..52a9947afb 100644
--- a/packages/backend-defaults/report-alpha.api.md
+++ b/packages/backend-defaults/report-alpha.api.md
@@ -32,7 +32,9 @@ export class DefaultSystemMetadataService implements SystemMetadataService {
     config: RootConfigService;
   }): DefaultSystemMetadataService;
   // (undocumented)
-  listInstances(): Promise<BackstageInstance[]>;
+  introspect(): Promise<{
+    instances: BackstageInstance[];
+  }>;
 }
 
 // @alpha