diff --git a/src/lib/actions/btc/sign-message.ts b/src/lib/actions/btc/sign-message.ts
index e2ad58e6..c2766b99 100644
--- a/src/lib/actions/btc/sign-message.ts
+++ b/src/lib/actions/btc/sign-message.ts
@@ -1,7 +1,10 @@
 import { getCurrentWallet } from '@/lib/wallet'
+import { Message, PrivateKey } from 'bitcore-lib'
 import { Chain } from '@metalet/utxo-wallet-service'
 
 export async function process(message: string, encoding?: BufferEncoding): Promise<string> {
   const wallet = await getCurrentWallet(Chain.BTC)
-  return wallet.signMessage(message, encoding ?? 'base64')
+  const privateKey = wallet.getPrivateKey()
+  const signMessage = new Message(message)
+  return signMessage.sign(new PrivateKey(privateKey))
 }