diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 62d0391..0c358ad 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -16,41 +16,27 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ['8.4', '8.3', '8.2', '8.1', '8.0']
-        laravel: ['8.*', '9.*', '10.*', '11.*', '12.*']
+        php: ['8.4', '8.3', '8.2', '8.1']
+        laravel: ['10.*', '11.*', '12.*', '13.*']
         dependency-version: [prefer-stable]
         exclude:
-          - php: 8.0
-            laravel: 10.*
-          - php: 8.0
-            laravel: 11.*
-          - php: 8.0
-            laravel: 12.*
           - php: 8.1
             laravel: 11.*
           - php: 8.1
             laravel: 12.*
+          - php: 8.1
+            laravel: 13.*
           - php: 8.2
-            laravel: 8.*
-          - php: 8.3
-            laravel: 8.*
-          - php: 8.3
-            laravel: 9.*
-          - php: 8.4
-            laravel: 8.*
-          - php: 8.4
-            laravel: 9.*
+            laravel: 13.*
         include:
-          - laravel: 8.*
-            testbench: 6.23
-          - laravel: 9.*
-            testbench: 7.*
           - laravel: 10.*
             testbench: 8.*
           - laravel: 11.*
             testbench: 9.*
           - laravel: 12.*
             testbench: 10.*
+          - laravel: 13.*
+            testbench: 11.*
 
     name: P${{ matrix.php }} - L${{ matrix.laravel }} - ${{ matrix.dependency-version }} - ubuntu-latest
 
@@ -71,4 +57,4 @@ jobs:
           composer update --${{ matrix.dependency-version }} --prefer-dist --no-interaction
 
       - name: Execute tests
-        run: vendor/bin/phpunit
\ No newline at end of file
+        run: vendor/bin/phpunit
diff --git a/composer.json b/composer.json
index e6da0e9..ef0eac9 100644
--- a/composer.json
+++ b/composer.json
@@ -17,12 +17,12 @@
     ],
     "require": {
         "php": "^7.1 || ^8.0",
-        "illuminate/support": "^5.5 || ^6.0 || ^7.0 || ^8.0 || ^9.0|^10.0 || ^11.0 || ^12.0"
+        "illuminate/support": "^5.5 || ^6.0 || ^7.0 || ^8.0 || ^9.0 || ^10.0 || ^11.0 || ^12.0 || ^13.0"
     },
     "require-dev": {
         "laravel/legacy-factories": "^1.0",
-        "orchestra/testbench": "^3.0 || ^4.0 || ^5.0 || ^6.0|^8.0 || ^9.0 || ^10.0",
-        "phpunit/phpunit": "^7.0 || ^8.0 || ^9.0 || ^10.5 || ^11.5.3"
+        "orchestra/testbench": "^3.0 || ^4.0 || ^5.0 || ^6.0 || ^8.0 || ^9.0 || ^10.0 || ^11.0",
+        "phpunit/phpunit": "^7.0 || ^8.0 || ^9.0 || ^10.5 || ^11.5.3 || ^12.5.12"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/Outputs/Debugbar.php b/src/Outputs/Debugbar.php
index 8d46898..c5b2760 100644
--- a/src/Outputs/Debugbar.php
+++ b/src/Outputs/Debugbar.php
@@ -2,13 +2,10 @@
 
 namespace BeyondCode\QueryDetector\Outputs;
 
+use DebugBar\DataCollector\MessagesCollector;
 use Illuminate\Support\Collection;
 use Symfony\Component\HttpFoundation\Response;
 
-use Barryvdh\Debugbar\Facade as LaravelDebugbarV3;
-use DebugBar\DataCollector\MessagesCollector;
-use Fruitcake\LaravelDebugbar\Facades\Debugbar as LaravelDebugbar;
-
 class Debugbar implements Output
 {
     protected $collector;
@@ -17,26 +14,52 @@ public function boot()
     {
         $this->collector = new MessagesCollector('N+1 Queries');
 
-        if (class_exists(\Fruitcake\LaravelDebugbar\Facades\Debugbar::class)) {
-            if (!LaravelDebugbar::hasCollector($this->collector->getName())) {
-                LaravelDebugbar::addCollector($this->collector);
-            }
+        $facade = $this->resolveDebugbarFacade();
+
+        if ($facade === null) {
             return;
         }
 
-        if (!LaravelDebugbarV3::hasCollector($this->collector->getName())) {
-            LaravelDebugbarV3::addCollector($this->collector);
+        if (! $facade::hasCollector($this->collector->getName())) {
+            $facade::addCollector($this->collector);
         }
     }
 
     public function output(Collection $detectedQueries, Response $response)
     {
         foreach ($detectedQueries as $detectedQuery) {
-            $this->collector->addMessage(sprintf('Model: %s => Relation: %s - You should add `with(%s)` to eager-load this relation.',
+            $this->collector->addMessage(sprintf(
+                'Model: %s => Relation: %s - You should add `with(%s)` to eager-load this relation.',
                 $detectedQuery['model'],
                 $detectedQuery['relation'],
                 $detectedQuery['relation']
             ));
         }
     }
+
+    /**
+     * Resolve the installed Debugbar facade at runtime.
+     *
+     * Supports barryvdh/laravel-debugbar (v3 and v4+) and
+     * fruitcake/laravel-debugbar. Returns the first class
+     * that the autoloader can locate, or null if none exist.
+     *
+     * @return string|null
+     */
+    protected function resolveDebugbarFacade()
+    {
+        $candidates = [
+            'Barryvdh\Debugbar\Facades\Debugbar',
+            'Barryvdh\Debugbar\Facade',
+            'Fruitcake\LaravelDebugbar\Facades\Debugbar',
+        ];
+
+        foreach ($candidates as $candidate) {
+            if (class_exists($candidate)) {
+                return $candidate;
+            }
+        }
+
+        return null;
+    }
 }
diff --git a/tests/QueryDetectorTest.php b/tests/QueryDetectorTest.php
index f2dbe0d..37419a5 100644
--- a/tests/QueryDetectorTest.php
+++ b/tests/QueryDetectorTest.php
@@ -12,8 +12,7 @@
 
 class QueryDetectorTest extends TestCase
 {
-    /** @test */
-    public function it_detects_n1_query_on_properties()
+    public function test_it_detects_n1_query_on_properties()
     {
         Route::get('/', function (){
             $authors = Author::all();
@@ -34,8 +33,7 @@ public function it_detects_n1_query_on_properties()
         $this->assertSame('profile', $queries[0]['relation']);
     }
 
-    /** @test */
-    public function it_detects_n1_query_on_multiple_requests()
+    public function test_it_detects_n1_query_on_multiple_requests()
     {
         Route::get('/', function (){
             $authors = Author::get();
@@ -62,8 +60,7 @@ public function it_detects_n1_query_on_multiple_requests()
         $this->assertSame('profile', $queries[0]['relation']);
     }
 
-    /** @test */
-    public function it_does_not_detect_a_false_n1_query_on_multiple_requests()
+    public function test_it_does_not_detect_a_false_n1_query_on_multiple_requests()
     {
         Route::get('/', function (){
             $authors = Author::with("profile")->get();
@@ -82,8 +79,7 @@ public function it_does_not_detect_a_false_n1_query_on_multiple_requests()
         $this->assertCount(0, app(QueryDetector::class)->getDetectedQueries());
     }
 
-    /** @test */
-    public function it_ignores_eager_loaded_relationships()
+    public function test_it_ignores_eager_loaded_relationships()
     {
         Route::get('/', function (){
             $authors = Author::with('profile')->get();
@@ -100,8 +96,7 @@ public function it_ignores_eager_loaded_relationships()
         $this->assertCount(0, $queries);
     }
 
-    /** @test */
-    public function it_detects_n1_queries_from_builder()
+    public function test_it_detects_n1_queries_from_builder()
     {
         Route::get('/', function (){
             $authors = Author::with('profile')->get();
@@ -123,8 +118,7 @@ public function it_detects_n1_queries_from_builder()
         $this->assertSame(Post::class, $queries[0]['relation']);
     }
 
-    /** @test */
-    public function it_detects_all_n1_queries()
+    public function test_it_detects_all_n1_queries()
     {
         Route::get('/', function (){
             $authors = Author::with('profile')->get();
@@ -154,8 +148,7 @@ public function it_detects_all_n1_queries()
         $this->assertSame('author', $queries[1]['relation']);
     }
 
-    /** @test */
-    public function it_detects_n1_queries_on_morph_relations()
+    public function test_it_detects_n1_queries_on_morph_relations()
     {
         Route::get('/', function (){
             foreach (Post::all() as $post) {
@@ -174,8 +167,7 @@ public function it_detects_n1_queries_on_morph_relations()
         $this->assertSame('comments', $queries[0]['relation']);
     }
 
-    /** @test */
-    public function it_detects_n1_queries_on_morph_relations_with_builder()
+    public function test_it_detects_n1_queries_on_morph_relations_with_builder()
     {
         Route::get('/', function (){
             foreach (Post::all() as $post) {
@@ -194,8 +186,7 @@ public function it_detects_n1_queries_on_morph_relations_with_builder()
         $this->assertSame(Comment::class, $queries[0]['relation']);
     }
 
-    /** @test */
-    public function it_can_be_disabled()
+    public function test_it_can_be_disabled()
     {
         $this->app['config']->set('querydetector.enabled', false);
 
@@ -212,8 +203,7 @@ public function it_can_be_disabled()
         $this->assertCount(0, $queries);
     }
 
-    /** @test */
-    public function it_ignores_whitelisted_relations()
+    public function test_it_ignores_whitelisted_relations()
     {
         $this->app['config']->set('querydetector.enabled', true);
         $this->app['config']->set('querydetector.except', [
@@ -235,8 +225,7 @@ public function it_ignores_whitelisted_relations()
         $this->assertCount(0, $queries);
     }
 
-    /** @test */
-    public function it_ignores_whitelisted_relations_with_attributes()
+    public function test_it_ignores_whitelisted_relations_with_attributes()
     {
         $this->app['config']->set('querydetector.enabled', true);
         $this->app['config']->set('querydetector.except', [
@@ -258,8 +247,7 @@ public function it_ignores_whitelisted_relations_with_attributes()
         $this->assertCount(0, $queries);
     }
 
-    /** @test */
-    public function it_ignores_redirects()
+    public function test_it_ignores_redirects()
     {
         Route::get('/', function (){
             foreach (Post::all() as $post) {
@@ -275,8 +263,7 @@ public function it_ignores_redirects()
         $this->assertCount(1, $queries);
     }
 
-    /** @test */
-    public function it_fires_an_event_if_detects_n1_query()
+    public function test_it_fires_an_event_if_detects_n1_query()
     {
         Event::fake();
 
@@ -293,8 +280,7 @@ public function it_fires_an_event_if_detects_n1_query()
         Event::assertDispatched(QueryDetected::class);
     }
 
-    /** @test */
-    public function it_does_not_fire_an_event_if_there_is_no_n1_query()
+    public function test_it_does_not_fire_an_event_if_there_is_no_n1_query()
     {
         Event::fake();
 
@@ -310,8 +296,7 @@ public function it_does_not_fire_an_event_if_there_is_no_n1_query()
 
         Event::assertNotDispatched(QueryDetected::class);
     }
-    /** @test */
-    public function it_uses_the_trace_line_to_detect_queries()
+    public function test_it_uses_the_trace_line_to_detect_queries()
     {
         Route::get('/', function (){
             $authors = Author::all();
@@ -337,8 +322,7 @@ public function it_uses_the_trace_line_to_detect_queries()
         $this->assertSame('profile', $queries[0]['relation']);
     }
 
-    /** @test */
-    public function it_empty_queries()
+    public function test_it_empty_queries()
     {
         Route::get('/', function (){
             $authors = Author::all();