diff --git a/src/Transactions/Builder/AbstractTransactionBuilder.php b/src/Transactions/Builder/AbstractTransactionBuilder.php
index 1d98d89..fd241b8 100644
--- a/src/Transactions/Builder/AbstractTransactionBuilder.php
+++ b/src/Transactions/Builder/AbstractTransactionBuilder.php
@@ -77,9 +77,9 @@ public function sign(string $passphrase): static
         $keys                                       = PrivateKey::fromPassphrase($passphrase);
 
         $this->transaction->data['senderPublicKey'] = $keys->getPublicKey()->getHex();
-        
+
         $this->transaction             = $this->transaction->sign($keys);
-        
+
         $this->transaction->data['id'] = $this->transaction->getId();
 
         return $this;
diff --git a/src/Transactions/Deserializer.php b/src/Transactions/Deserializer.php
index b71fd39..d4431f3 100644
--- a/src/Transactions/Deserializer.php
+++ b/src/Transactions/Deserializer.php
@@ -15,7 +15,6 @@
 use ArkEcosystem\Crypto\Transactions\Types\Vote;
 use ArkEcosystem\Crypto\Utils\AbiDecoder;
 use ArkEcosystem\Crypto\Utils\Address;
-use BitWasp\Buffertools\Buffer;
 
 class Deserializer
 {
diff --git a/src/Transactions/Types/AbstractTransaction.php b/src/Transactions/Types/AbstractTransaction.php
index 777cd48..adf3521 100644
--- a/src/Transactions/Types/AbstractTransaction.php
+++ b/src/Transactions/Types/AbstractTransaction.php
@@ -16,8 +16,6 @@
 use BitWasp\Bitcoin\Crypto\EcAdapter\Key\PublicKeyInterface;
 use BitWasp\Bitcoin\Crypto\EcAdapter\Signature\CompactSignatureInterface;
 use BitWasp\Bitcoin\Crypto\Hash;
-use BitWasp\Bitcoin\Key\Factory\PublicKeyFactory;
-use BitWasp\Bitcoin\Signature\SignatureFactory;
 use BitWasp\Buffertools\Buffer;
 use BitWasp\Buffertools\BufferInterface;
 
diff --git a/src/Utils/TransactionHasher.php b/src/Utils/TransactionHasher.php
index e3298ec..a6da4f2 100644
--- a/src/Utils/TransactionHasher.php
+++ b/src/Utils/TransactionHasher.php
@@ -35,7 +35,7 @@ public static function toHash(array $transaction, bool $skipSignature = false):
             [], // accessList is unused
         ];
 
-        if (!$skipSignature) {
+        if (! $skipSignature) {
             $signatureBuffer = hex2bin($transaction['signature']);
 
             $r = substr($signatureBuffer, 0, 32);