diff --git a/src/types/open-api.d.ts b/src/types/open-api.d.ts
index aefc0b73..e5a7d72e 100644
--- a/src/types/open-api.d.ts
+++ b/src/types/open-api.d.ts
@@ -181,7 +181,7 @@ export interface OpenAPIRequestBody {
 }
 
 export interface OpenAPIResponses {
-  [code: string]: OpenAPIResponse;
+  [code: string]: Referenced<OpenAPIResponse>;
 }
 
 export interface OpenAPIResponse {