diff --git a/src/Service/GraphTokenProvider.php b/src/Service/GraphTokenProvider.php
index 9bed56c..c26a757 100644
--- a/src/Service/GraphTokenProvider.php
+++ b/src/Service/GraphTokenProvider.php
@@ -5,7 +5,7 @@ declare(strict_types=1);
 namespace SbpJm\FlarumMSTeamsWebhook\Service;
 
 use Flarum\Settings\SettingsRepositoryInterface;
-use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Client;
 use RuntimeException;
 
 class GraphTokenProvider
@@ -14,7 +14,7 @@ class GraphTokenProvider
     protected int $expiresAt = 0;
 
     public function __construct(
-        protected ClientInterface $http,
+        protected Client $http,
         protected SettingsRepositoryInterface $settings
     ) {
     }
@@ -54,4 +54,4 @@ class GraphTokenProvider
 
         return $this->accessToken;
     }
-}
+}
\ No newline at end of file
diff --git a/src/Service/TeamsActivityNotifier.php b/src/Service/TeamsActivityNotifier.php
index bf53dd2..501f56e 100644
--- a/src/Service/TeamsActivityNotifier.php
+++ b/src/Service/TeamsActivityNotifier.php
@@ -7,7 +7,7 @@ namespace SbpJm\FlarumMSTeamsWebhook\Service;
 use Flarum\Notification\Blueprint\BlueprintInterface;
 use Flarum\Settings\SettingsRepositoryInterface;
 use Flarum\User\User;
-use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Client;
 use RuntimeException;
 use SbpJm\FlarumMSTeamsWebhook\Support\NotificationPayloadFactory;
 use SbpJm\FlarumMSTeamsWebhook\Support\TargetResolver;
@@ -15,7 +15,7 @@ use SbpJm\FlarumMSTeamsWebhook\Support\TargetResolver;
 class TeamsActivityNotifier
 {
     public function __construct(
-        protected ClientInterface $http,
+        protected Client $http,
         protected SettingsRepositoryInterface $settings,
         protected GraphTokenProvider $tokenProvider,
         protected TargetResolver $targetResolver,
@@ -64,4 +64,4 @@ class TeamsActivityNotifier
             ));
         }
     }
-}
+}
\ No newline at end of file