diff --git a/Helper/SubscriptionHelper.php b/Helper/SubscriptionHelper.php
index 8c3a274a..29d0c073 100644
--- a/Helper/SubscriptionHelper.php
+++ b/Helper/SubscriptionHelper.php
@@ -194,7 +194,7 @@ class SubscriptionHelper
      * @param mixed $value
      * @return Filter
      */
-    private function buildFilter(string $field, mixed $value)
+    private function buildFilter(string $field, $value)
     {
         return $this->filterBuilder
             ->setField($field)
diff --git a/Helper/Transaction.php b/Helper/Transaction.php
index 4b866404..bdfdb7c7 100644
--- a/Helper/Transaction.php
+++ b/Helper/Transaction.php
@@ -129,7 +129,7 @@ class Transaction
      * @param mixed $transactionId
      * @return void
      */
-    public function closeTransaction(mixed $transactionId)
+    public function closeTransaction($transactionId)
     {
         $transaction = $this->transactionRepository->get($transactionId);
         $transaction->setIsClosed(true);
diff --git a/Model/CheckoutSessionManagement.php b/Model/CheckoutSessionManagement.php
index a9c37c03..a1ddbcb4 100755
--- a/Model/CheckoutSessionManagement.php
+++ b/Model/CheckoutSessionManagement.php
@@ -1359,7 +1359,7 @@ class CheckoutSessionManagement implements \Amazon\Pay\Api\CheckoutSessionManage
      * @param mixed $orderId
      * @return void
      */
-    public function setOrderPendingPaymentReview(mixed $orderId)
+    public function setOrderPendingPaymentReview($orderId)
     {
         try {
             if (!$orderId) {