diff --git a/package-lock.json b/package-lock.json
index d466ce9f..f3e6ca77 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@0xpolygonid/js-sdk",
-  "version": "1.14.0",
+  "version": "1.14.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@0xpolygonid/js-sdk",
-      "version": "1.14.0",
+      "version": "1.14.1",
       "license": "AGPL-3.0",
       "dependencies": {
         "@noble/curves": "^1.4.0",
diff --git a/package.json b/package.json
index 5dab6016..154ce722 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@0xpolygonid/js-sdk",
-  "version": "1.14.0",
+  "version": "1.14.1",
   "description": "SDK to work with Polygon ID",
   "main": "dist/node/cjs/index.js",
   "module": "dist/node/esm/index.js",
diff --git a/src/iden3comm/handlers/payment.ts b/src/iden3comm/handlers/payment.ts
index f88b8f47..1d980e7e 100644
--- a/src/iden3comm/handlers/payment.ts
+++ b/src/iden3comm/handlers/payment.ts
@@ -191,7 +191,7 @@ export class PaymentHandler
       throw new Error(`failed request. empty 'from' field`);
     }
 
-    if (!paymentRequest.body?.payments?.length) {
+    if (!paymentRequest.body.payments?.length) {
       throw new Error(`failed request. no 'payments' in body`);
     }
 
@@ -285,13 +285,13 @@ export class PaymentHandler
       );
     }
 
-    if (!payment.body?.payments.length) {
+    if (!payment.body.payments.length) {
       throw new Error(`failed request. empty 'payments' field in body`);
     }
 
     for (let i = 0; i < payment.body.payments.length; i++) {
-      const p = payment.body?.payments[i];
-      const paymentRequestData = opts.paymentRequest.body?.payments.find((r) => r.data.id === p.id);
+      const p = payment.body.payments[i];
+      const paymentRequestData = opts.paymentRequest.body.payments.find((r) => r.data.id === p.id);
       if (!paymentRequestData) {
         throw new Error(`can't find payment request for payment id ${p.id}`);
       }
diff --git a/src/iden3comm/types/protocol/payment.ts b/src/iden3comm/types/protocol/payment.ts
index 7e3cd6a1..592a7719 100644
--- a/src/iden3comm/types/protocol/payment.ts
+++ b/src/iden3comm/types/protocol/payment.ts
@@ -3,7 +3,7 @@ import { PaymentRequestDataType, PaymentRequestType, PaymentType } from '../../.
 
 /** @beta PaymentRequestMessage is struct the represents payment-request message */
 export type PaymentRequestMessage = BasicMessage & {
-  body?: PaymentRequestMessageBody;
+  body: PaymentRequestMessageBody;
 };
 
 /** @beta PaymentRequestMessageBody is struct the represents body for payment-request */
@@ -28,8 +28,8 @@ export type PaymentRequestInfo = {
 export type PaymentRequestDataInfo = {
   type: PaymentRequestDataType;
   amount: string;
-  id: number;
-  chainId: number;
+  id: string;
+  chainId: string;
   address: string;
   currency: string;
   signature?: string;
@@ -37,7 +37,7 @@ export type PaymentRequestDataInfo = {
 
 /** @beta  PaymentMessage is struct the represents payment message */
 export type PaymentMessage = BasicMessage & {
-  body?: PaymentMessageBody;
+  body: PaymentMessageBody;
 };
 
 /** @beta  PaymentMessageBody is struct the represents body for payment message */
@@ -47,7 +47,7 @@ export type PaymentMessageBody = {
 
 /** @beta PaymentInfo is struct the represents payment info for payment */
 export type PaymentInfo = {
-  id: number;
+  id: string;
   type: PaymentType;
   paymentData: {
     txId: string;
diff --git a/tests/handlers/payment.test.ts b/tests/handlers/payment.test.ts
index 932c375e..85c5b7a1 100644
--- a/tests/handlers/payment.test.ts
+++ b/tests/handlers/payment.test.ts
@@ -133,8 +133,8 @@ describe('payment-request handler', () => {
     data: {
       type: PaymentRequestDataType.Iden3PaymentRequestCryptoV1,
       amount: '0.001',
-      id: 12432,
-      chainId: 80002,
+      id: '12432',
+      chainId: '80002',
       address: '0x2C2007d72f533FfD409F0D9f515983e95bF14992',
       currency: 'ETH'
     },
@@ -232,7 +232,7 @@ describe('payment-request handler', () => {
     const paymentRequest = createPaymentRequest(issuerDID, userDID, agent, [paymentReqInfo]);
     const payment = createPayment(userDID, issuerDID, [
       {
-        id: paymentRequest.body?.payments[0].data.id || 0,
+        id: paymentRequest.body.payments[0].data.id,
         type: PaymentType.Iden3PaymentCryptoV1,
         paymentData: {
           txId: '0x312312334'
@@ -272,7 +272,7 @@ describe('payment-request handler', () => {
     const paymentRequest = createPaymentRequest(issuerDID, userDID, agent, [paymentReqInfo]);
     const payment = createPayment(userDID, issuerDID, [
       {
-        id: paymentRequest.body?.payments[0].data.id || 0,
+        id: paymentRequest.body.payments[0].data.id,
         type: PaymentType.Iden3PaymentCryptoV1,
         paymentData: {
           txId: '0xe9bea8e7adfe1092a8a4ca2cd75f4d21cc54b9b7a31bd8374b558d11b58a6a1a'