diff --git a/src/iden3comm/types/protocol/payment.ts b/src/iden3comm/types/protocol/payment.ts
index 778d0f0a..f12a3bd4 100644
--- a/src/iden3comm/types/protocol/payment.ts
+++ b/src/iden3comm/types/protocol/payment.ts
@@ -1,5 +1,10 @@
 import { BasicMessage } from '../';
-import { PaymentRequestDataType, PaymentRequestType, PaymentType } from '../../../verifiable';
+import {
+  PaymentRequestDataType,
+  PaymentRequestType,
+  PaymentType,
+  SupportedCurrencies
+} from '../../../verifiable';
 import { PROTOCOL_MESSAGE_TYPE } from '../../constants';
 
 /** @beta PaymentRequestMessage is struct the represents payment-request message */
@@ -33,7 +38,7 @@ export type PaymentRequestDataInfo = {
   id: string;
   chainId: string;
   address: string;
-  currency: string;
+  currency: SupportedCurrencies;
   signature?: string;
 };
 
diff --git a/src/verifiable/constants.ts b/src/verifiable/constants.ts
index beaa591b..b1fd2521 100644
--- a/src/verifiable/constants.ts
+++ b/src/verifiable/constants.ts
@@ -144,7 +144,8 @@ export enum PaymentType {
  * @enum {number}
  */
 export enum SupportedCurrencies {
-  ETH = 'ETH'
+  ETH = 'ETH',
+  MATIC = 'MATIC'
 }
 
 /**
diff --git a/tests/handlers/payment.test.ts b/tests/handlers/payment.test.ts
index 85c5b7a1..b2196f46 100644
--- a/tests/handlers/payment.test.ts
+++ b/tests/handlers/payment.test.ts
@@ -136,7 +136,7 @@ describe('payment-request handler', () => {
       id: '12432',
       chainId: '80002',
       address: '0x2C2007d72f533FfD409F0D9f515983e95bF14992',
-      currency: 'ETH'
+      currency: SupportedCurrencies.ETH
     },
     expiration: '2125558127',
     description: 'payment-request integration test'