diff --git a/src/Hash.php b/src/Hash.php
index 7893d32..efb44c9 100644
--- a/src/Hash.php
+++ b/src/Hash.php
@@ -26,6 +26,6 @@ public function passwordVerify(string $password, string $hash): bool
      */
     public function createHash(string $password): string
     {
-        return password_hash($password, PASSWORD_BCRYPT);
+        return password_hash($password, \PASSWORD_BCRYPT);
     }
 }