diff --git a/tests/Assets/AssetTest.php b/tests/Assets/AssetTest.php
index 5cd5b5cee7..b26d6bfdf2 100644
--- a/tests/Assets/AssetTest.php
+++ b/tests/Assets/AssetTest.php
@@ -1830,10 +1830,10 @@ public function it_appends_timestamp_to_uploaded_files_filename_if_it_already_ex
     public function it_lowercases_uploaded_filenames_by_default()
     {
         Event::fake();
-        $asset = $this->container->makeAsset('path/to/lowercase-THIS-asset.jpg');
+        $asset = $this->container->makeAsset('path/to/lowercase-THIS-asset.JPG');
         Facades\AssetContainer::shouldReceive('findByHandle')->with('test_container')->andReturn($this->container);
 
-        $asset->upload(UploadedFile::fake()->image('lowercase-THIS-asset.jpg'));
+        $asset->upload(UploadedFile::fake()->image('lowercase-THIS-asset.JPG'));
 
         Storage::disk('test')->assertExists('path/to/lowercase-this-asset.jpg');
         $this->assertEquals('path/to/lowercase-this-asset.jpg', $asset->path());
@@ -1913,13 +1913,13 @@ public function it_doesnt_lowercase_uploaded_filenames_when_configured()
         config(['statamic.assets.lowercase' => false]);
 
         Event::fake();
-        $asset = $this->container->makeAsset('path/to/do-NOT-lowercase-THIS-asset.jpg');
+        $asset = $this->container->makeAsset('path/to/do-NOT-lowercase-THIS-asset.JPG');
         Facades\AssetContainer::shouldReceive('findByHandle')->with('test_container')->andReturn($this->container);
 
-        $asset->upload(UploadedFile::fake()->image('do-NOT-lowercase-THIS-asset.jpg'));
+        $asset->upload(UploadedFile::fake()->image('do-NOT-lowercase-THIS-asset.JPG'));
 
-        Storage::disk('test')->assertExists('path/to/do-NOT-lowercase-THIS-asset.jpg');
-        $this->assertEquals('path/to/do-NOT-lowercase-THIS-asset.jpg', $asset->path());
+        Storage::disk('test')->assertExists('path/to/do-NOT-lowercase-THIS-asset.JPG');
+        $this->assertEquals('path/to/do-NOT-lowercase-THIS-asset.JPG', $asset->path());
         Event::assertDispatched(AssetUploaded::class, function ($event) use ($asset) {
             return $event->asset = $asset;
         });