diff --git a/src/hooks/useDirectMessages.ts b/src/hooks/useDirectMessages.ts
index 21c90ad..d3598cf 100644
--- a/src/hooks/useDirectMessages.ts
+++ b/src/hooks/useDirectMessages.ts
@@ -2,11 +2,15 @@ import { useCallback, useMemo } from 'react';
 import { useNostr } from '@nostrify/react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { nip44, nip19, getEventHash, generateSecretKey, getPublicKey } from 'nostr-tools';
-import { bytesToHex } from '@noble/hashes/utils';
+
 import type { NostrEvent } from '@nostrify/nostrify';
 import { useCurrentUser } from './useCurrentUser';
 import { useAppContext } from './useAppContext';
 
+// Uint8Array → hex string (replaces @noble/hashes/utils which dropped ./utils in v2)
+const bytesToHex = (bytes: Uint8Array): string =>
+  Array.from(bytes).map(b => b.toString(16).padStart(2, '0')).join('');
+
 // NIP-17 Message Types
 export interface DirectMessage {
   id: string;