diff --git a/package-lock.json b/package-lock.json
index 4dcc4a1..7c7b60b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,6 +31,7 @@
         "fs-extra": "^10.0.0",
         "joi": "^17.4.2",
         "lodash": "^4.17.21",
+        "md5-hash": "^1.0.1",
         "moment": "^2.29.4",
         "nestjs-pino": "^2.3.1",
         "passport": "^0.4.0",
@@ -7358,6 +7359,11 @@
         "tmpl": "1.0.5"
       }
     },
+    "node_modules/md5-hash": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/md5-hash/-/md5-hash-1.0.1.tgz",
+      "integrity": "sha512-McGTs7cIc3JSw9SJH5JxFCJRoI1bi9tKh89LZxpHobmY2YGGhYTnDZ2rxcvNv0Bs1gBbSwSQfCwbuFleZOkkYA=="
+    },
     "node_modules/media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
@@ -16405,6 +16411,11 @@
         "tmpl": "1.0.5"
       }
     },
+    "md5-hash": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/md5-hash/-/md5-hash-1.0.1.tgz",
+      "integrity": "sha512-McGTs7cIc3JSw9SJH5JxFCJRoI1bi9tKh89LZxpHobmY2YGGhYTnDZ2rxcvNv0Bs1gBbSwSQfCwbuFleZOkkYA=="
+    },
     "media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
diff --git a/package.json b/package.json
index 0b19eb4..de09715 100644
--- a/package.json
+++ b/package.json
@@ -44,6 +44,7 @@
     "fs-extra": "^10.0.0",
     "joi": "^17.4.2",
     "lodash": "^4.17.21",
+    "md5-hash": "^1.0.1",
     "moment": "^2.29.4",
     "nestjs-pino": "^2.3.1",
     "passport": "^0.4.0",
diff --git a/src/helper/irs-api.ts b/src/helper/irs-api.ts
index 5b8474d..9b1b644 100644
--- a/src/helper/irs-api.ts
+++ b/src/helper/irs-api.ts
@@ -1,5 +1,5 @@
 import axios from 'axios';
-import cryptoMd5 from "crypto";
+import md5 from 'md5-hash';
 
 const irs_url = 'http://h2h.elangpixiu.com/api/h2h';
 const irs_id = 'PT0005';
@@ -32,7 +32,6 @@ export const doTransaction = async (
     } else if (supplier.code == 'Digiflazz') {
       if (typePaid == 'INQUIRY') {
         const md5HashDigiflazz = `${supplier.irs_user}${supplier.irs_pass}${idtrx}`;
-        var cryptoMd5 = require('md5');
 
         const options = {
           headers: { 'Content-Type': 'application/json' },
@@ -43,7 +42,7 @@ export const doTransaction = async (
           customer_no: `${destination}`,
           buyer_sku_code: `${productCode}`,
           ref_id: `${idtrx}`,
-          sign: cryptoMd5(md5HashDigiflazz, 'hex'),
+          sign: md5(md5HashDigiflazz),
           testing: true,
         };
         const res = await axios.post(
@@ -55,7 +54,6 @@ export const doTransaction = async (
         return res.data;
       } else if (typePaid == 'PAYMENT') {
         const md5HashDigiflazz = `${supplier.irs_user}${supplier.irs_pass}${idtrx}`;
-        var cryptoMd5 = require('md5');
 
         const options = {
           headers: { 'Content-Type': 'application/json' },
@@ -66,7 +64,7 @@ export const doTransaction = async (
           customer_no: `${destination}`,
           buyer_sku_code: `${productCode}`,
           ref_id: `${billTrxId}`,
-          sign: cryptoMd5(md5HashDigiflazz, 'hex'),
+          sign: md5(md5HashDigiflazz),
           testing: true,
         };
         const res = await axios.post(
@@ -78,8 +76,7 @@ export const doTransaction = async (
         return res.data;
       } else {
         const md5HashDigiflazz = `${supplier.irs_user}${supplier.irs_pass}${idtrx}`;
-        var cryptoMd5 = require('md5');
-        console.log('hashmd5', cryptoMd5(md5HashDigiflazz, 'hex'));
+        console.log('hashmd5', md5(md5HashDigiflazz));
         const options = {
           headers: {'Content-Type': 'application/json'},
         };
@@ -88,7 +85,7 @@ export const doTransaction = async (
           customer_no: `${destination}`,
           buyer_sku_code: `${productCode}`,
           ref_id: `${idtrx}`,
-          sign: cryptoMd5(md5HashDigiflazz, 'hex'),
+          sign: md5(md5HashDigiflazz),
           testing: true,
         };
         const res = await axios.post(
diff --git a/yarn.lock b/yarn.lock
index 79dcc4d..cf4f6a8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4386,6 +4386,11 @@
   dependencies:
     "tmpl" "1.0.5"
 
+"md5-hash@^1.0.1":
+  "integrity" "sha512-McGTs7cIc3JSw9SJH5JxFCJRoI1bi9tKh89LZxpHobmY2YGGhYTnDZ2rxcvNv0Bs1gBbSwSQfCwbuFleZOkkYA=="
+  "resolved" "https://registry.npmjs.org/md5-hash/-/md5-hash-1.0.1.tgz"
+  "version" "1.0.1"
+
 "media-typer@0.3.0":
   "integrity" "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
   "resolved" "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz"