fix argument to micro-bip32

nip06.js

@@ -8,7 +8,9 @@ import {HDKey} from 'micro-bip32'
 
 export function privateKeyFromSeed(seed) {
   let root = HDKey.fromMasterSeed(Buffer.from(seed, 'hex'))
-  return root.derive(`m/44'/1237'/0'/0'`).privateKey.toString('hex')
+  return Buffer.from(root.derive(`m/44'/1237'/0'/0'`).privateKey).toString(
+    'hex'
+  )
 }
 
 export function seedFromWords(mnemonic) {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nostr-tools",
-  "version": "0.14.1",
+  "version": "0.14.2",
   "description": "Tools for making a Nostr client.",
   "repository": {
     "type": "git",