diff --git a/src/framework/types.ts b/src/framework/types.ts
index 9d4d0c65..792da9ad 100644
--- a/src/framework/types.ts
+++ b/src/framework/types.ts
@@ -68,7 +68,7 @@ export type OperationHandlerOptions = {
     handlersPath: string,
     route: RouteMetadata,
     apiDoc: OpenAPIV3.Document,
-  ) => RequestHandler | Promise<RequestHandler>;
+  ) => unknown;
 };
 
 export type Format = {