diff --git a/src/components/PaymentModal.tsx b/src/components/PaymentModal.tsx
index a0a644a..80ef67f 100644
--- a/src/components/PaymentModal.tsx
+++ b/src/components/PaymentModal.tsx
@@ -2,15 +2,15 @@
 
 import { useCallback, useMemo, useState } from 'react';
 import BN from 'bn.js';
-import assert from 'assert';
+// import assert from 'assert';
 
-import { Connection } from '@solana/web3.js';
+import { clusterApiUrl, Connection } from '@solana/web3.js';
 
 import { sendSolanaTokenPayment } from '@/services/solana';
 import { PaymentModalProps } from '@/types';
 
-assert(process.env.NEXT_PUBLIC_SOLANA_RPC_URL, 'SOLANA_RPC_URL is required');
-const SOLANA_RPC_URL = process.env.NEXT_PUBLIC_SOLANA_RPC_URL;
+// assert(process.env.NEXT_PUBLIC_SOLANA_RPC_URL, 'SOLANA_RPC_URL is required');
+// const SOLANA_RPC_URL = process.env.NEXT_PUBLIC_SOLANA_RPC_URL;
 
 export default function PaymentModal({
   isOpen,
@@ -22,7 +22,8 @@ export default function PaymentModal({
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState('');
 
-  const connection = useMemo(() => new Connection(SOLANA_RPC_URL), [])
+  const connection = useMemo(() => new Connection(clusterApiUrl("mainnet-beta")), []);
+  // const connection = useMemo(() => new Connection(SOLANA_RPC_URL), [])
 
   // Get configuration from environment variables directly
   const amount = parseInt(process.env.NEXT_PUBLIC_SOLANA_PAYMENT_AMOUNT!);