diff --git a/src/Http/Requests/Admin/ProductCreateRequest.php b/src/Http/Requests/Admin/ProductCreateRequest.php
index a723cc3..a1ce987 100644
--- a/src/Http/Requests/Admin/ProductCreateRequest.php
+++ b/src/Http/Requests/Admin/ProductCreateRequest.php
@@ -53,8 +53,8 @@ public function rules(): array
             'recursive' => ['required_if:type,' . ProductType::SUBSCRIPTION, 'boolean'],
             // trial
             'has_trial' => ['required_if:type,' . ProductType::SUBSCRIPTION, 'boolean'],
-            'trial_period' => ['required_if:type,' . ProductType::SUBSCRIPTION. ',has_trial,true', Rule::in(PeriodEnum::getValues())],
-            'trial_duration' => ['required_if:type,' . ProductType::SUBSCRIPTION. ',has_trial,true', 'integer', 'gt:0'],
+            'trial_period' => ['nullable', 'required_if:has_trial,true', Rule::in(PeriodEnum::getValues())],
+            'trial_duration' => ['nullable', 'required_if:has_trial,true', 'integer', 'gt:0'],
         ];
     }
 }
diff --git a/src/Http/Requests/Admin/ProductUpdateRequest.php b/src/Http/Requests/Admin/ProductUpdateRequest.php
index 0b24df4..b0df1ca 100644
--- a/src/Http/Requests/Admin/ProductUpdateRequest.php
+++ b/src/Http/Requests/Admin/ProductUpdateRequest.php
@@ -55,8 +55,8 @@ public function rules(): array
             'recursive' => ['required_if:type,' . ProductType::SUBSCRIPTION, 'boolean'],
             // trial
             'has_trial' => ['required_if:type,' . ProductType::SUBSCRIPTION, 'boolean'],
-            'trial_period' => ['required_if:type,' . ProductType::SUBSCRIPTION . ',has_trial,true', Rule::in(PeriodEnum::getValues())],
-            'trial_duration' => ['required_if:type,' . ProductType::SUBSCRIPTION . ',has_trial,true', 'integer', 'gt:0'],
+            'trial_period' => ['nullable', 'required_if:has_trial,true', Rule::in(PeriodEnum::getValues())],
+            'trial_duration' => ['nullable', 'required_if:has_trial,true', 'integer', 'gt:0'],
         ];
     }
 
diff --git a/tests/API/AdminProductApiTest.php b/tests/API/AdminProductApiTest.php
index 294971e..3e5d805 100644
--- a/tests/API/AdminProductApiTest.php
+++ b/tests/API/AdminProductApiTest.php
@@ -300,7 +300,7 @@ public function test_create_product_subscription_type_validation(array $data, ar
         $productable = ExampleProductable::factory()->create();
 
         $productData = Product::factory()
-            ->subscription()
+            ->subscriptionWithTrial()
             ->make([
                 ...$data,
                 'productables' => [[
@@ -480,10 +480,10 @@ public function test_update_product_subscription_type_validation(array $data, ar
         /** @var ExampleProductable $productable */
         $productable = ExampleProductable::factory()->create();
         /** @var Product $product */
-        $product = Product::factory()->subscription()->create();
+        $product = Product::factory()->subscriptionWithTrial()->create();
 
         $productData = Product::factory()
-            ->subscription()
+            ->subscriptionWithTrial()
             ->make([
                 ...$data,
                 'productables' => [[
@@ -827,9 +827,9 @@ private function invalidSubscriptionDataProvider(): array
             ['data' => ['subscription_duration' => null], 'errors' => ['subscription_duration' => 'The subscription duration field is required when type is subscription.']],
             ['data' => ['recursive' => null], 'errors' => ['recursive' => 'The recursive field is required when type is subscription.']],
             ['data' => ['has_trial' => null], 'errors' => ['has_trial' => 'The has trial field is required when type is subscription.']],
-            ['data' => ['trial_period' => null], 'errors' => ['trial_period' => 'The trial period field is required when type is subscription.']],
+            ['data' => ['trial_period' => null], 'errors' => ['trial_period' => 'The trial period field is required when has trial is true.']],
             ['data' => ['trial_period' => 'invalid_period'], 'errors' => ['trial_period' => 'The selected trial period is invalid.']],
-            ['data' => ['trial_duration' => null], 'errors' => ['trial_duration' => 'The trial duration field is required when type is subscription.']],
+            ['data' => ['trial_duration' => null], 'errors' => ['trial_duration' => 'The trial duration field is required when has trial is true.']],
             ['data' => ['trial_duration' => -1], 'errors' => ['trial_duration' => 'The trial duration must be greater than 0.']],
             ['data' => ['trial_duration' => 0], 'errors' => ['trial_duration' => 'The trial duration must be greater than 0.']],
         ];