diff --git a/app/Livewire/SlackSettingsForm.php b/app/Livewire/SlackSettingsForm.php
index f12ef568f0..7487f30961 100644
--- a/app/Livewire/SlackSettingsForm.php
+++ b/app/Livewire/SlackSettingsForm.php
@@ -159,7 +159,7 @@ class SlackSettingsForm extends Component
             ]);
 
         try {
-            $test = $webhook->post($this->webhook_endpoint, ['body' => $payload]);
+            $test = $webhook->post($this->webhook_endpoint, ['body' => $payload, ['headers' => ['Content-Type' => 'application/json']]]);
 
             if(($test->getStatusCode() == 302)||($test->getStatusCode() == 301)){
                 return session()->flash('error' , trans('admin/settings/message.webhook.error_redirect', ['endpoint' => $this->webhook_endpoint]));