diff --git a/src/request/MasterpassRetrieveLoyaltiesRequest.ts b/src/request/MasterpassRetrieveLoyaltiesRequest.ts
index 4914bc3..291b6b8 100644
--- a/src/request/MasterpassRetrieveLoyaltiesRequest.ts
+++ b/src/request/MasterpassRetrieveLoyaltiesRequest.ts
@@ -2,6 +2,7 @@ type MasterpassRetrieveLoyaltiesRequest = {
   msisdn: string;
   binNumber: string;
   cardName: string;
+  masterpassIntegrationVersion?: number;
 };
 
 export default MasterpassRetrieveLoyaltiesRequest;