diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5bd4790..fc3fe54 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [8.1,8.2,8.3]
+        php: [8.2,8.3,8.4]
     steps:
     - uses: actions/checkout@v2
     - uses: shivammathur/setup-php@v2
diff --git a/composer.json b/composer.json
index 95d1f4a..f11357c 100644
--- a/composer.json
+++ b/composer.json
@@ -11,8 +11,8 @@
         }
     ],
     "require": {
-        "illuminate/contracts": "^5.0|^6.0|^7.0|^8.0|^9.0|^10.0|^11.0|^12.0",
-        "illuminate/support": "^4.0|^5.0|^6.0|^7.0|^8.0|^9.0|^10.0|^11.0|^12.0"
+        "illuminate/contracts": "^5.0|^6.0|^7.0|^8.0|^9.0|^10.0|^11.0|^12.0|^13.0",
+        "illuminate/support": "^4.0|^5.0|^6.0|^7.0|^8.0|^9.0|^10.0|^11.0|^12.0|^13.0"
     },
     "require-dev": {
         "php-coveralls/php-coveralls": "*",
diff --git a/phpunit.xml b/phpunit.xml
index ec9d395..9af29a3 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="false" bootstrap="vendor/autoload.php" colors="true" processIsolation="false" stopOnFailure="true" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.2/phpunit.xsd" cacheDirectory=".phpunit.cache" backupStaticProperties="false">
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="false" bootstrap="vendor/autoload.php" colors="true" processIsolation="false" stopOnFailure="true" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/12.5/phpunit.xsd" cacheDirectory=".phpunit.cache" backupStaticProperties="false">
   <coverage>
     <report>
       <clover outputFile="build/logs/clover.xml"/>
diff --git a/tests/ModelTest.php b/tests/ModelTest.php
index a2cec0b..11bc11d 100644
--- a/tests/ModelTest.php
+++ b/tests/ModelTest.php
@@ -223,14 +223,17 @@ public function testGuarded()
     public function testGuardedCallback()
     {
         ModelStub::unguard();
-        $mock = $this->getMockBuilder('stdClass')
-            ->addMethods(['callback'])
-            ->getMock();
-        $mock->expects($this->once())
-            ->method('callback')
-            ->willReturn('foo');
-        $string = ModelStub::unguarded([$mock, 'callback']);
+        $callbackTarget = new class {
+            public int $callCount = 0;
+            public function callback(): string
+            {
+                $this->callCount++;
+                return 'foo';
+            }
+        };
+        $string = ModelStub::unguarded([$callbackTarget, 'callback']);
         $this->assertEquals('foo', $string);
+        $this->assertSame(1, $callbackTarget->callCount);
         ModelStub::reguard();
     }