diff --git a/src/ServiceProvider.php b/src/ServiceProvider.php
index a8b4450..a53fe12 100644
--- a/src/ServiceProvider.php
+++ b/src/ServiceProvider.php
@@ -32,7 +32,7 @@ public function register(): void
 
     private function registerComponents(): void
     {
-        $this->app->singleton(Firebase\Contract\AppCheck::class, static fn (Container $app) => $app->make(FirebaseProjectManager::class)->project()->appcheck());
+        $this->app->singleton(Firebase\Contract\AppCheck::class, static fn (Container $app) => $app->make(FirebaseProjectManager::class)->project()->appCheck());
         $this->app->alias(Firebase\Contract\AppCheck::class, 'firebase.app_check');
 
         $this->app->singleton(Firebase\Contract\Auth::class, static fn (Container $app) => $app->make(FirebaseProjectManager::class)->project()->auth());