diff --git a/src/helper/irs-api.ts b/src/helper/irs-api.ts
index aee11de..1eda4b3 100644
--- a/src/helper/irs-api.ts
+++ b/src/helper/irs-api.ts
@@ -42,7 +42,7 @@ export const doTransaction = async (
           customer_no: `${destination}`,
           buyer_sku_code: `${productCode}`,
           ref_id: `${idtrx}`,
-          sign: md5.default(md5HashDigiflazz),
+          sign: md5(md5HashDigiflazz),
           testing: true,
         };
         const res = await axios.post(
@@ -64,7 +64,7 @@ export const doTransaction = async (
           customer_no: `${destination}`,
           buyer_sku_code: `${productCode}`,
           ref_id: `${billTrxId}`,
-          sign: md5.default(md5HashDigiflazz),
+          sign: md5(md5HashDigiflazz),
           testing: true,
         };
         const res = await axios.post(
@@ -85,7 +85,7 @@ export const doTransaction = async (
           customer_no: `${destination}`,
           buyer_sku_code: `${productCode}`,
           ref_id: `${idtrx}`,
-          sign: md5.default(md5HashDigiflazz),
+          sign: md5(md5HashDigiflazz),
           testing: true,
         };
         const res = await axios.post(