diff --git a/src/WebhookChannel.php b/src/WebhookChannel.php
index b6bd5df..742db75 100644
--- a/src/WebhookChannel.php
+++ b/src/WebhookChannel.php
@@ -37,7 +37,7 @@ public function send($notifiable, Notification $notification)
         $webhookData = $notification->toWebhook($notifiable)->toArray();
 
         $response = $this->client->post($url, [
-            'body' => json_encode(Arr::get($webhookData, 'data')),
+            'json' => Arr::get($webhookData, 'data'),
             'verify' => false,
             'headers' => Arr::get($webhookData, 'headers'),
         ]);
diff --git a/tests/ChannelTest.php b/tests/ChannelTest.php
index 69a3ea1..1b0c3df 100644
--- a/tests/ChannelTest.php
+++ b/tests/ChannelTest.php
@@ -22,7 +22,7 @@ public function it_can_send_a_notification()
             ->once()
             ->with('https://notifiable-webhook-url.com',
                 [
-                    'body' => '{"payload":{"webhook":"data"}}',
+                    'json' => ['payload' => ['webhook' => 'data']],
                     'verify' => false,
                     'headers' => [
                         'User-Agent' => 'WebhookAgent',
@@ -42,7 +42,7 @@ public function it_can_send_a_notification_with_2xx_status()
             ->once()
             ->with('https://notifiable-webhook-url.com',
                 [
-                    'body' => '{"payload":{"webhook":"data"}}',
+                    'json' => ['payload' => ['webhook' => 'data']],
                     'verify' => false,
                     'headers' => [
                         'User-Agent' => 'WebhookAgent',