diff --git a/README.md b/README.md
index 3a4ab0c..ddcd829 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ camel case**.
 ## Requirements
 
 * PHP 8.0+
-* Laravel 8+
+* Laravel 8, 9, 10, 11, 12, or 13
 
 ## Installation
 
diff --git a/composer.json b/composer.json
index 71a8b92..2fe86ce 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     "require": {
         "php": "^8.0",
         "guzzlehttp/guzzle": "^7.10",
-        "illuminate/contracts": "^9.0|^10.0|^11.0|^12.0"
+        "illuminate/contracts": "^9.0|^10.0|^11.0|^12.0|^13.0"
     },
     "require-dev": {
         "nunomaduro/collision": "^6.0",
diff --git a/tests/Unit/ServiceProviderTest.php b/tests/Unit/ServiceProviderTest.php
new file mode 100644
index 0000000..14ba456
--- /dev/null
+++ b/tests/Unit/ServiceProviderTest.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Abivia\Plaid\Tests\Unit;
+
+use Abivia\Plaid\Plaid;
+use Abivia\Plaid\PlaidServiceProvider;
+use Abivia\Plaid\Tests\TestCase;
+
+/**
+ * @covers \Abivia\Plaid\PlaidServiceProvider
+ */
+class ServiceProviderTest extends TestCase
+{
+    public function testServiceProviderIsRegistered(): void
+    {
+        $this->assertArrayHasKey(
+            PlaidServiceProvider::class,
+            $this->app->getLoadedProviders()
+        );
+    }
+
+    public function testPlaidSingletonIsResolved(): void
+    {
+        $plaid = $this->app->make('plaid');
+
+        $this->assertInstanceOf(Plaid::class, $plaid);
+    }
+
+    public function testPlaidSingletonReturnsSameInstance(): void
+    {
+        $first = $this->app->make('plaid');
+        $second = $this->app->make('plaid');
+
+        $this->assertSame($first, $second);
+    }
+}