diff --git a/index.js b/index.js
index 314bd45..d75f102 100644
--- a/index.js
+++ b/index.js
@@ -69,7 +69,7 @@ function getMerkleRoot(transactions, transaction_hash_func, detectWitness) {
   const forWitness = detectWitness ? txesHaveWitnessCommit(transactions) : false;
   const hashes = transactions.map(transaction => transaction_hash_func(transaction, forWitness));
   const rootHash = fastMerkleRoot(hashes, hash256);
-  return forWitness ? hash256_3(Buffer.concat([rootHash, transactions[0].ins[0].witness[0]])) : rootHash;
+  return forWitness ? hash256(Buffer.concat([rootHash, transactions[0].ins[0].witness[0]])) : rootHash;
 }
 
 let last_epoch_number;
diff --git a/package.json b/package.json
index aae29f8..26c3e6f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cryptoforknote-util",
-  "version": "15.3.19",
+  "version": "15.3.20",
   "author": {
     "name": "LucasJones",
     "email": "lucasjonesdev@hotmail.co.uk"