diff --git a/src/Actions/RetryBulkRequest.php b/src/Actions/RetryBulkRequest.php
index 6e209d8..a7f7df7 100644
--- a/src/Actions/RetryBulkRequest.php
+++ b/src/Actions/RetryBulkRequest.php
@@ -20,7 +20,7 @@ public function retry(BulkRequest $bulkRequest, bool $onlyFailed): ?BulkRequest
     {
         /** @var array<int, mixed> $payload */
         $payload = [];
-        /** @var array<int, Model> $subjects */
+        /** @var array<int, ?Model> $subjects */
         $subjects = [];
 
         $operations = $bulkRequest->operations;
diff --git a/src/Client/MagentoAsync.php b/src/Client/MagentoAsync.php
index 30fe2bc..7e34cde 100644
--- a/src/Client/MagentoAsync.php
+++ b/src/Client/MagentoAsync.php
@@ -21,7 +21,7 @@ class MagentoAsync
 
     protected ?Model $subject = null;
 
-    /** @var array<int, Model> */
+    /** @var array<int, ?Model> */
     protected array $subjects = [];
 
     public function __construct(
@@ -70,7 +70,7 @@ public function subject(Model $subject): static
         return $this;
     }
 
-    /** @param  array<int, Model>  $subjects */
+    /** @param  array<int, ?Model>  $subjects */
     public function subjects(array $subjects): static
     {
         $this->subjects = $subjects;