diff --git a/tests/TestCase.php b/tests/TestCase.php
index 8de5be0f..9e2a8833 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -2,12 +2,10 @@
 
 namespace Inertia\Tests;
 
-use Illuminate\Foundation\Testing\TestResponse as LegacyTestResponse;
 use Illuminate\Support\Facades\View;
 use Illuminate\Testing\TestResponse;
 use Inertia\Inertia;
 use Inertia\ServiceProvider;
-use LogicException;
 use Orchestra\Testbench\TestCase as Orchestra;
 
 abstract class TestCase extends Orchestra
@@ -30,26 +28,7 @@ protected function setUp(): void
         config()->set('inertia.testing.page_paths', [realpath(__DIR__)]);
     }
 
-    /**
-     * @throws LogicException
-     */
-    protected function getTestResponseClass(): string
-    {
-        // Laravel >= 7.0
-        if (class_exists(TestResponse::class)) {
-            return TestResponse::class;
-        }
-
-        // Laravel <= 6.0
-        if (class_exists(LegacyTestResponse::class)) {
-            return LegacyTestResponse::class;
-        }
-
-        throw new LogicException('Could not detect TestResponse class.');
-    }
-
-    /** @returns TestResponse|LegacyTestResponse */
-    protected function makeMockRequest($view)
+    protected function makeMockRequest($view): TestResponse
     {
         app('router')->get('/example-url', function () use ($view) {
             return $view;
diff --git a/tests/Testing/TestResponseMacrosTest.php b/tests/Testing/TestResponseMacrosTest.php
index 837177af..ed2e7764 100644
--- a/tests/Testing/TestResponseMacrosTest.php
+++ b/tests/Testing/TestResponseMacrosTest.php
@@ -3,6 +3,7 @@
 namespace Inertia\Tests\Testing;
 
 use Illuminate\Testing\Fluent\AssertableJson;
+use Illuminate\Testing\TestResponse;
 use Inertia\Inertia;
 use Inertia\Tests\TestCase;
 
@@ -30,7 +31,7 @@ public function test_it_preserves_the_ability_to_continue_chaining_laravel_test_
         );
 
         $this->assertInstanceOf(
-            $this->getTestResponseClass(),
+            TestResponse::class,
             $response->assertInertia()
         );
     }