diff --git a/CHANGELOG.md b/CHANGELOG.md
index 01e3019..7ec4f50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,4 +30,8 @@
 
 * Fix for very slow encryption [#10](https://github.com/nick322/secure-spreadsheet/issues/10)
     . 
-    Thanks for @jonathanbromley contribution.
\ No newline at end of file
+    Thanks for @jonathanbromley contribution.
+
+## 1.0.9 (2023-09-20)
+
+* Fix password is not accepted [#18](https://github.com/nick322/secure-spreadsheet/issues/18)
diff --git a/src/Encrypt.php b/src/Encrypt.php
index bc2cd37..6b14518 100644
--- a/src/Encrypt.php
+++ b/src/Encrypt.php
@@ -358,7 +358,16 @@ private function _crypt($encrypt, $cipherAlgorithm, $cipherChaining, $key, $iv,
 
     private function _hash($algorithm, ...$buffers)
     {
-        return unpack('C*', hash(strtolower($algorithm), pack('C*', ...$buffers), true));
+        $algorithm = strtolower($algorithm);
+
+        $buffers = array_merge([], ...$buffers);
+
+        if (!in_array($algorithm, hash_algos())) throw new \Exception("Hash algorithm '$algorithm' not supported!");
+
+        $ctx = hash_init($algorithm);
+
+        hash_update($ctx, pack('C*', ...$buffers));
+        return unpack('C*', hash_final($ctx, true));
     }
 
     private function _hmac($algorithm, $key, $fileName)