diff --git a/README.md b/README.md
index 4f5c333..cfad695 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ Features
 Requirements
 ------------
 
-  - Directory Lister requires [PHP](https://www.php.net/) >= 8.0
+  - Directory Lister requires [PHP](https://www.php.net/) >= 8.1
     - The [Zip](https://www.php.net/manual/en/book.zip.php) extension is required for zip downloads
     - The [DOM](https://www.php.net/en/dom) and [Fileinfo](https://www.php.net/manual/en/book.fileinfo.php) extensions are required for README rendering
 
diff --git a/app/config/container.php b/app/config/container.php
index 6644ab8..1d01ba8 100644
--- a/app/config/container.php
+++ b/app/config/container.php
@@ -1,15 +1,19 @@
 <?php
 
+use App\Config;
 use App\Factories;
 use App\Middlewares;
 use App\SortMethods;
 use App\ViewFunctions;
 use function DI\create;
+use function DI\env;
 use function DI\factory;
+use function DI\get;
 use function DI\string;
+use function DI\value;
 
 return [
-    /** Path definitions */
+    /** Path definitions and helpers */
     'base_path' => dirname(__DIR__, 2),
     'app_path' => dirname(__DIR__),
     'asset_path' => string('{app_path}/assets'),
@@ -18,6 +22,8 @@ return [
     'source_path' => string('{app_path}/src'),
     'translations_path' => string('{app_path}/translations'),
     'views_path' => string('{app_path}/views'),
+    'files_path' => env('FILES_PATH', get('base_path')),
+    'full_path' => value(fn (string $path, Config $config): string => $config->get('files_path') . '/' . $path),
 
     /** Array of application files (to be hidden) */
     'app_files' => ['app', 'index.php', '.analytics', '.env', '.env.example', '.hidden'],
diff --git a/app/src/Controllers/DirectoryController.php b/app/src/Controllers/DirectoryController.php
index 079945b..319829e 100644
--- a/app/src/Controllers/DirectoryController.php
+++ b/app/src/Controllers/DirectoryController.php
@@ -3,6 +3,7 @@
 namespace App\Controllers;
 
 use App\Config;
+use DI\Container;
 use Exception;
 use Psr\Http\Message\ResponseInterface;
 use Slim\Psr7\Request;
@@ -16,6 +17,7 @@ class DirectoryController
 {
     /** Create a new IndexController object. */
     public function __construct(
+        private Container $container,
         private Config $config,
         private Finder $finder,
         private Twig $view,
@@ -25,10 +27,11 @@ class DirectoryController
     /** Invoke the IndexController. */
     public function __invoke(Request $request, Response $response): ResponseInterface
     {
-        $path = $request->getQueryParams()['dir'] ?? '.';
+        $relativePath = $request->getQueryParams()['dir'] ?? '.';
+        $fullPath = $this->container->call('full_path', ['path' => $relativePath]);
 
         try {
-            $files = $this->finder->in($path)->depth(0);
+            $files = $this->finder->in($fullPath)->depth(0);
         } catch (Exception $exception) {
             return $this->view->render($response->withStatus(404), 'error.twig', [
                 'message' => $this->translator->trans('error.directory_not_found'),
@@ -37,9 +40,9 @@ class DirectoryController
 
         return $this->view->render($response, 'index.twig', [
             'files' => $files,
-            'path' => $path,
+            'path' => $relativePath,
             'readme' => $this->readme($files),
-            'title' => $path == '.' ? 'Home' : $path,
+            'title' => $relativePath == '.' ? 'Home' : $relativePath,
         ]);
     }
 
diff --git a/app/src/Controllers/FileController.php b/app/src/Controllers/FileController.php
new file mode 100644
index 0000000..cb6d7a4
--- /dev/null
+++ b/app/src/Controllers/FileController.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Controllers;
+
+use App\Config;
+use DI\Container;
+use Psr\Http\Message\ResponseInterface;
+use Slim\Psr7\Factory\StreamFactory;
+use Slim\Psr7\Request;
+use Slim\Psr7\Response;
+use SplFileInfo;
+use Symfony\Contracts\Translation\TranslatorInterface;
+
+class FileController
+{
+    public function __construct(
+        private Container $container,
+        private Config $config,
+        private TranslatorInterface $translator
+    ) {}
+
+    public function __invoke(Request $request, Response $response): ResponseInterface
+    {
+        $path = $this->container->call('full_path', ['path' => $request->getQueryParams()['file']]);
+
+        $file = new SplFileInfo((string) realpath($path));
+
+        if (! $file->isFile()) {
+            return $response->withStatus(404, $this->translator->trans('error.file_not_found'));
+        }
+
+        $response = $response->withHeader('Content-Description', 'File Transfer');
+        $response = $response->withHeader('Content-Disposition', sprintf('attachment; filename="%s"', $file->getFilename()));
+        $response = $response->withHeader('Content-Length', $file->getSize());
+        $response = $response->withHeader('Content-Type', $file->getType());
+
+        return $response->withBody(
+            (new StreamFactory)->createStreamFromFile($file->getRealPath())
+        );
+    }
+}
diff --git a/app/src/Controllers/FileInfoController.php b/app/src/Controllers/FileInfoController.php
index 871c802..b4dedeb 100644
--- a/app/src/Controllers/FileInfoController.php
+++ b/app/src/Controllers/FileInfoController.php
@@ -3,6 +3,7 @@
 namespace App\Controllers;
 
 use App\Config;
+use DI\Container;
 use Psr\Http\Message\ResponseInterface;
 use Slim\Psr7\Request;
 use Slim\Psr7\Response;
@@ -14,6 +15,7 @@ class FileInfoController
 {
     /** Create a new FileInfoHandler object. */
     public function __construct(
+        private Container $container,
         private Config $config,
         private CacheInterface $cache,
         private TranslatorInterface $translator
@@ -22,11 +24,9 @@ class FileInfoController
     /** Invoke the FileInfoHandler. */
     public function __invoke(Request $request, Response $response): ResponseInterface
     {
-        $path = $request->getQueryParams()['info'];
+        $path = $this->container->call('full_path', ['path' => $request->getQueryParams()['info']]);
 
-        $file = new SplFileInfo(
-            (string) realpath($this->config->get('base_path') . '/' . $path)
-        );
+        $file = new SplFileInfo((string) realpath($path));
 
         if (! $file->isFile()) {
             return $response->withStatus(404, $this->translator->trans('error.file_not_found'));
diff --git a/app/src/Controllers/IndexController.php b/app/src/Controllers/IndexController.php
index 86c39e4..36318b5 100644
--- a/app/src/Controllers/IndexController.php
+++ b/app/src/Controllers/IndexController.php
@@ -17,18 +17,16 @@ class IndexController
     /** Invoke the IndexController. */
     public function __invoke(Request $request, Response $response): ResponseInterface
     {
-        switch (true) {
-            case array_key_exists('info', $request->getQueryParams()):
-                return $this->container->call(FileInfoController::class, [$request, $response]);
+        $firstQueryParam = array_key_first($request->getQueryParams());
 
-            case array_key_exists('search', $request->getQueryParams()):
-                return $this->container->call(SearchController::class, [$request, $response]);
+        $controller = match ($firstQueryParam) {
+            'file' => FileController::class,
+            'info' => FileInfoController::class,
+            'search' => SearchController::class,
+            'zip' => ZipController::class,
+            default => DirectoryController::class,
+        };
 
-            case array_key_exists('zip', $request->getQueryParams()):
-                return $this->container->call(ZipController::class, [$request, $response]);
-
-            default:
-                return $this->container->call(DirectoryController::class, [$request, $response]);
-        }
+        return $this->container->call($controller, [$request, $response]);
     }
 }
diff --git a/app/src/Controllers/ZipController.php b/app/src/Controllers/ZipController.php
index f33cd2c..3787e00 100644
--- a/app/src/Controllers/ZipController.php
+++ b/app/src/Controllers/ZipController.php
@@ -6,6 +6,7 @@ use App\CallbackStream;
 use App\Config;
 use App\Support\Str;
 use DateTime;
+use DI\Container;
 use Exception;
 use Psr\Http\Message\ResponseInterface;
 use RuntimeException;
@@ -22,6 +23,7 @@ class ZipController
 {
     /** Create a new ZipHandler object. */
     public function __construct(
+        private Container $container,
         private Config $config,
         private Finder $finder,
         private TranslatorInterface $translator
@@ -34,7 +36,7 @@ class ZipController
      */
     public function __invoke(Request $request, Response $response): ResponseInterface
     {
-        $path = $request->getQueryParams()['zip'];
+        $path = $this->container->call('full_path', ['path' => $request->getQueryParams()['zip']]);
 
         if (! $this->config->get('zip_downloads') || ! is_dir($path)) {
             return $response->withStatus(404, $this->translator->trans('error.file_not_found'));
@@ -100,9 +102,7 @@ class ZipController
 
     protected function augmentHeadersWithEstimatedSize(Response $response, int $size): Response
     {
-        $response = $response->withHeader('Content-Length', (string) $size);
-
-        return $response;
+        return $response->withHeader('Content-Length', (string) $size);
     }
 
     /** Return the path to a file with the preceding root path stripped. */
diff --git a/app/src/Factories/FinderFactory.php b/app/src/Factories/FinderFactory.php
index 6c4f5ac..0f5efeb 100644
--- a/app/src/Factories/FinderFactory.php
+++ b/app/src/Factories/FinderFactory.php
@@ -60,7 +60,7 @@ class FinderFactory
     {
         if (! $this->pattern instanceof Pattern) {
             $this->pattern = Pattern::make(sprintf('%s{%s}', Pattern::escape(
-                $this->config->get('base_path') . DIRECTORY_SEPARATOR
+                $this->config->get('files_path') . DIRECTORY_SEPARATOR
             ), $this->hiddenFiles->implode(',')));
         }
 
diff --git a/app/src/ViewFunctions/Breadcrumbs.php b/app/src/ViewFunctions/Breadcrumbs.php
index 70e25a2..9f0c904 100644
--- a/app/src/ViewFunctions/Breadcrumbs.php
+++ b/app/src/ViewFunctions/Breadcrumbs.php
@@ -24,7 +24,7 @@ class Breadcrumbs extends ViewFunction
     public function __invoke(string $path): Collection
     {
         return Str::explode($path, $this->directorySeparator)->diffAssoc(
-            explode($this->directorySeparator, $this->config->get('base_path'))
+            explode($this->directorySeparator, $this->config->get('files_path'))
         )->filter(static function (string $crumb): bool {
             return ! in_array($crumb, [null, '.']);
         })->reduce(function (Collection $carry, string $crumb): Collection {
diff --git a/app/src/ViewFunctions/FileUrl.php b/app/src/ViewFunctions/FileUrl.php
index 1569de6..1f177ec 100644
--- a/app/src/ViewFunctions/FileUrl.php
+++ b/app/src/ViewFunctions/FileUrl.php
@@ -9,12 +9,12 @@ class FileUrl extends Url
     /** Return the URL for a given path and action. */
     public function __invoke(string $path = '/'): string
     {
-        $path = $this->stripLeadingSlashes($path);
-
         if (is_file($path)) {
-            return $this->escape($path);
+            return sprintf('?file=%s', $this->escape($this->normalizePath($path)));
         }
 
+        $path = $this->normalizePath($path);
+
         if ($path === '') {
             return '';
         }
diff --git a/app/src/ViewFunctions/Url.php b/app/src/ViewFunctions/Url.php
index 8f2da6d..fe5b089 100644
--- a/app/src/ViewFunctions/Url.php
+++ b/app/src/ViewFunctions/Url.php
@@ -2,6 +2,7 @@
 
 namespace App\ViewFunctions;
 
+use App\Config;
 use App\Support\Str;
 
 class Url extends ViewFunction
@@ -10,13 +11,34 @@ class Url extends ViewFunction
 
     /** Create a new Url object. */
     public function __construct(
+        private Config $config,
         private string $directorySeparator = DIRECTORY_SEPARATOR
     ) {}
 
     /** Return the URL for a given path. */
     public function __invoke(string $path = '/'): string
     {
-        return $this->escape($this->stripLeadingSlashes($path));
+        return $this->escape($this->normalizePath($path));
+    }
+
+    /** Strip base path and leading slashes (and a single dot) from a path */
+    protected function normalizePath(string $path): string
+    {
+        return $this->stripLeadingSlashes($this->stripBasePath($path));
+    }
+
+    /** Strip the base path from the beginning of a path. */
+    protected function stripBasePath(string $path): string
+    {
+        $basePath = $this->config->get('files_path') . $this->directorySeparator;
+
+        $position = strpos($path, $basePath);
+
+        if ($position !== 0) {
+            return $path;
+        }
+
+        return (string) substr_replace($path, '', 0, strlen($basePath));
     }
 
     /** Strip all leading slashes (and a single dot) from a path. */
diff --git a/app/src/ViewFunctions/ZipUrl.php b/app/src/ViewFunctions/ZipUrl.php
index a13b2a8..7fffb0f 100644
--- a/app/src/ViewFunctions/ZipUrl.php
+++ b/app/src/ViewFunctions/ZipUrl.php
@@ -9,7 +9,7 @@ class ZipUrl extends Url
     /** Return the URL for a given path and action. */
     public function __invoke(string $path = '/'): string
     {
-        $path = $this->stripLeadingSlashes($path);
+        $path = $this->normalizePath($path);
 
         if ($path === '') {
             return '?zip=.';
diff --git a/composer.json b/composer.json
index 7366761..a96e78c 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         "issues": "https://github.com/DirectoryLister/DirectoryLister/issues"
     },
     "require": {
-        "php": "^8.1 || ^8.2 || ^8.3 || ^8.4",
+        "php": ">= 8.1",
         "ext-dom": "*",
         "ext-fileinfo": "*",
         "ext-zip": "*",
diff --git a/index.php b/index.php
index 6323471..c7e8d27 100644
--- a/index.php
+++ b/index.php
@@ -6,12 +6,12 @@ use Dotenv\Dotenv;
 
 require __DIR__ . '/app/vendor/autoload.php';
 
-// Set file access restrictions
-ini_set('open_basedir', __DIR__);
-
 // Initialize environment variable handler
 Dotenv::createUnsafeImmutable(__DIR__)->safeLoad();
 
+// Set file access restrictions
+ini_set('open_basedir', implode(PATH_SEPARATOR, [__DIR__, getenv('FILES_PATH')]));
+
 // Initialize the container
 $container = BootManager::createContainer(
     __DIR__ . '/app/config',
diff --git a/tests/Controllers/DirectoryControllerTest.php b/tests/Controllers/DirectoryControllerTest.php
index 7c5297d..b98fd24 100644
--- a/tests/Controllers/DirectoryControllerTest.php
+++ b/tests/Controllers/DirectoryControllerTest.php
@@ -24,12 +24,7 @@ class DirectoryControllerTest extends TestCase
         $this->container->set('hide_vcs_files', $hideVcsFiles);
         $this->container->set('display_readmes', $displayReadmes);
 
-        $controller = new DirectoryController(
-            $this->config,
-            new Finder,
-            $this->container->get(Twig::class),
-            $this->container->get(TranslatorInterface::class)
-        );
+        $controller = $this->container->get(DirectoryController::class);
 
         chdir($this->filePath('.'));
         $response = $controller($this->createMock(Request::class), new Response);
@@ -48,12 +43,7 @@ class DirectoryControllerTest extends TestCase
         $this->container->set('hide_vcs_files', $hideVcsFiles);
         $this->container->set('display_readmes', $displayReadmes);
 
-        $controller = new DirectoryController(
-            $this->config,
-            new Finder,
-            $this->container->get(Twig::class),
-            $this->container->get(TranslatorInterface::class)
-        );
+        $controller = $this->container->get(DirectoryController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['dir' => 'subdir']);
@@ -68,6 +58,7 @@ class DirectoryControllerTest extends TestCase
     public function test_it_returns_a_404_error_when_not_found(): void
     {
         $controller = new DirectoryController(
+            $this->container,
             $this->config,
             new Finder,
             $this->container->get(Twig::class),
diff --git a/tests/Controllers/FileControllerTest.php b/tests/Controllers/FileControllerTest.php
new file mode 100644
index 0000000..74f0906
--- /dev/null
+++ b/tests/Controllers/FileControllerTest.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Tests\Controllers;
+
+use App\Controllers\FileController;
+use Psr\Http\Message\ResponseInterface;
+use Slim\Psr7\Request;
+use Slim\Psr7\Response;
+use Tests\TestCase;
+
+/** @covers \App\Controllers\FileController */
+class FileControllerTest extends TestCase
+{
+    public function test_it_returns_a_successful_response_for_a_file_request(): void
+    {
+        $controller = $this->container->get(FileController::class);
+
+        $request = $this->createMock(Request::class);
+        $request->method('getQueryParams')->willReturn(['file' => 'README.md']);
+
+        $response = $controller($request, new Response);
+
+        $this->assertInstanceOf(ResponseInterface::class, $response);
+        $this->assertSame(200, $response->getStatusCode());
+
+        $this->assertSame([
+            'Content-Description' => ['File Transfer'],
+            'Content-Disposition' => ['attachment; filename="README.md"'],
+            'Content-Length' => ['30'],
+            'Content-Type' => ['file']
+        ], $response->getHeaders());
+
+        $this->assertSame("Test README.md; please ignore\n", (string) $response->getBody());
+    }
+
+    public function test_it_returns_a_404_error_when_not_found(): void
+    {
+        $controller = $this->container->get(FileController::class);
+
+        $request = $this->createMock(Request::class);
+        $request->method('getQueryParams')->willReturn(['file' => '404']);
+
+        $response = $controller($request, new Response);
+
+        $this->assertInstanceOf(ResponseInterface::class, $response);
+        $this->assertSame(404, $response->getStatusCode());
+    }
+}
diff --git a/tests/Controllers/FileInfoControllerTest.php b/tests/Controllers/FileInfoControllerTest.php
index 12ad09d..8688d03 100644
--- a/tests/Controllers/FileInfoControllerTest.php
+++ b/tests/Controllers/FileInfoControllerTest.php
@@ -6,7 +6,6 @@ use App\Controllers\FileInfoController;
 use Psr\Http\Message\ResponseInterface;
 use Slim\Psr7\Request;
 use Slim\Psr7\Response;
-use Symfony\Contracts\Translation\TranslatorInterface;
 use Tests\TestCase;
 
 /** @covers \App\Controllers\FileInfoController */
@@ -14,11 +13,7 @@ class FileInfoControllerTest extends TestCase
 {
     public function test_it_can_return_a_successful_response(): void
     {
-        $handler = new FileInfoController(
-            $this->config,
-            $this->cache,
-            $this->container->get(TranslatorInterface::class)
-        );
+        $handler = $this->container->get(FileInfoController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['info' => 'README.md']);
@@ -38,11 +33,7 @@ class FileInfoControllerTest extends TestCase
 
     public function test_it_can_return_a_not_found_response(): void
     {
-        $handler = new FileInfoController(
-            $this->config,
-            $this->cache,
-            $this->container->get(TranslatorInterface::class)
-        );
+        $handler = $this->container->get(FileInfoController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['info' => 'not_a_file.test']);
@@ -56,11 +47,8 @@ class FileInfoControllerTest extends TestCase
     public function test_it_returns_an_error_when_file_size_is_too_large(): void
     {
         $this->container->set('max_hash_size', 10);
-        $handler = new FileInfoController(
-            $this->config,
-            $this->cache,
-            $this->container->get(TranslatorInterface::class)
-        );
+
+        $handler = $this->container->get(FileInfoController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['info' => 'README.md']);
diff --git a/tests/Controllers/SearchControllerTest.php b/tests/Controllers/SearchControllerTest.php
index bad95c4..f88121b 100644
--- a/tests/Controllers/SearchControllerTest.php
+++ b/tests/Controllers/SearchControllerTest.php
@@ -6,9 +6,6 @@ use App\Controllers\SearchController;
 use Psr\Http\Message\ResponseInterface;
 use Slim\Psr7\Request;
 use Slim\Psr7\Response;
-use Slim\Views\Twig;
-use Symfony\Component\Finder\Finder;
-use Symfony\Contracts\Translation\TranslatorInterface;
 use Tests\TestCase;
 
 /** @covers \App\Controllers\SearchController */
@@ -16,11 +13,7 @@ class SearchControllerTest extends TestCase
 {
     public function test_it_returns_a_successful_response_for_a_search_request(): void
     {
-        $handler = new SearchController(
-            new Finder,
-            $this->container->get(Twig::class),
-            $this->container->get(TranslatorInterface::class)
-        );
+        $handler = $this->container->get(SearchController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['search' => 'charlie']);
@@ -35,11 +28,7 @@ class SearchControllerTest extends TestCase
 
     public function test_it_returns_no_results_found_when_there_are_no_results(): void
     {
-        $handler = new SearchController(
-            new Finder,
-            $this->container->get(Twig::class),
-            $this->container->get(TranslatorInterface::class)
-        );
+        $handler = $this->container->get(SearchController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['search' => 'test search; please ignore']);
@@ -54,11 +43,7 @@ class SearchControllerTest extends TestCase
 
     public function test_it_returns_no_results_found_for_a_blank_search(): void
     {
-        $handler = new SearchController(
-            new Finder,
-            $this->container->get(Twig::class),
-            $this->container->get(TranslatorInterface::class)
-        );
+        $handler = $this->container->get(SearchController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['search' => '']);
diff --git a/tests/Controllers/ZipControllerTest.php b/tests/Controllers/ZipControllerTest.php
index 37aa87e..58c7dea 100644
--- a/tests/Controllers/ZipControllerTest.php
+++ b/tests/Controllers/ZipControllerTest.php
@@ -6,8 +6,6 @@ use App\Controllers\ZipController;
 use Psr\Http\Message\ResponseInterface;
 use Slim\Psr7\Request;
 use Slim\Psr7\Response;
-use Symfony\Component\Finder\Finder;
-use Symfony\Contracts\Translation\TranslatorInterface;
 use Tests\TestCase;
 
 /** @covers \App\Controllers\ZipController */
@@ -15,11 +13,7 @@ class ZipControllerTest extends TestCase
 {
     public function test_it_returns_a_successful_response_for_a_zip_request(): void
     {
-        $controller = new ZipController(
-            $this->config,
-            new Finder,
-            $this->container->get(TranslatorInterface::class)
-        );
+        $controller = $this->container->get(ZipController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['zip' => 'subdir']);
@@ -34,11 +28,7 @@ class ZipControllerTest extends TestCase
 
     public function test_it_returns_a_404_error_when_not_found(): void
     {
-        $controller = new ZipController(
-            $this->config,
-            new Finder,
-            $this->container->get(TranslatorInterface::class)
-        );
+        $controller = $this->container->get(ZipController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['zip' => '404']);
@@ -53,11 +43,8 @@ class ZipControllerTest extends TestCase
     public function test_it_returns_a_404_error_when_disabled_via_config(): void
     {
         $this->container->set('zip_downloads', false);
-        $controller = new ZipController(
-            $this->config,
-            new Finder,
-            $this->container->get(TranslatorInterface::class)
-        );
+
+        $controller = $this->container->get(ZipController::class);
 
         $request = $this->createMock(Request::class);
         $request->method('getQueryParams')->willReturn(['zip' => 'subdir']);
diff --git a/tests/ViewFunctions/FileUrlTest.php b/tests/ViewFunctions/FileUrlTest.php
index 66d5ef3..9056866 100644
--- a/tests/ViewFunctions/FileUrlTest.php
+++ b/tests/ViewFunctions/FileUrlTest.php
@@ -10,7 +10,7 @@ class FileUrlTest extends TestCase
 {
     public function test_it_can_return_a_url(): void
     {
-        $url = new FileUrl;
+        $url = $this->container->get(FileUrl::class);
 
         $this->assertEquals('', $url('/'));
         $this->assertEquals('', $url('./'));
@@ -26,7 +26,7 @@ class FileUrlTest extends TestCase
 
     public function test_it_can_return_a_url_with_back_slashes(): void
     {
-        $url = new FileUrl('\\');
+        $url = $this->container->make(FileUrl::class, ['directorySeparator' => '\\']);
 
         $this->assertEquals('', $url('\\'));
         $this->assertEquals('', $url('.\\'));
@@ -40,7 +40,7 @@ class FileUrlTest extends TestCase
 
     public function test_url_segments_are_url_encoded(): void
     {
-        $url = new FileUrl;
+        $url = $this->container->get(FileUrl::class);
 
         $this->assertEquals('?dir=foo/bar%2Bbaz', $url('foo/bar+baz'));
         $this->assertEquals('?dir=foo/bar%23baz', $url('foo/bar#baz'));
diff --git a/tests/ViewFunctions/UrlTest.php b/tests/ViewFunctions/UrlTest.php
index baff833..7eb5bc3 100644
--- a/tests/ViewFunctions/UrlTest.php
+++ b/tests/ViewFunctions/UrlTest.php
@@ -10,7 +10,7 @@ class UrlTest extends TestCase
 {
     public function test_it_can_return_a_url(): void
     {
-        $url = new Url;
+        $url = $this->container->get(Url::class);
 
         $this->assertEquals('', $url('/'));
         $this->assertEquals('', $url('./'));
@@ -26,7 +26,7 @@ class UrlTest extends TestCase
 
     public function test_it_can_return_a_url_with_back_slashes(): void
     {
-        $url = new Url('\\');
+        $url = $this->container->make(Url::class, ['directorySeparator' => '\\']);
 
         $this->assertEquals('', $url('\\'));
         $this->assertEquals('', $url('.\\'));
@@ -40,7 +40,7 @@ class UrlTest extends TestCase
 
     public function test_url_segments_are_url_encoded(): void
     {
-        $url = new Url;
+        $url = $this->container->get(Url::class);
 
         $this->assertEquals('foo/bar%2Bbaz', $url('foo/bar+baz'));
         $this->assertEquals('foo/bar%23baz', $url('foo/bar#baz'));
diff --git a/tests/ViewFunctions/ZipUrlTest.php b/tests/ViewFunctions/ZipUrlTest.php
index b96ea45..647f3ec 100644
--- a/tests/ViewFunctions/ZipUrlTest.php
+++ b/tests/ViewFunctions/ZipUrlTest.php
@@ -10,7 +10,7 @@ class ZipUrlTest extends TestCase
 {
     public function test_it_can_return_a_url(): void
     {
-        $url = new ZipUrl;
+        $url = $this->container->get(ZipUrl::class);
 
         $this->assertEquals('?zip=.', $url('/'));
         $this->assertEquals('?zip=.', $url('./'));
@@ -26,7 +26,7 @@ class ZipUrlTest extends TestCase
 
     public function test_it_can_return_a_url_with_back_slashes(): void
     {
-        $url = new ZipUrl('\\');
+        $url = $this->container->make(ZipUrl::class, ['directorySeparator' => '\\']);
 
         $this->assertEquals('?zip=.', $url('\\'));
         $this->assertEquals('?zip=.', $url('.\\'));
@@ -38,7 +38,7 @@ class ZipUrlTest extends TestCase
 
     public function test_url_segments_are_url_encoded(): void
     {
-        $url = new ZipUrl;
+        $url = $this->container->get(ZipUrl::class);
 
         $this->assertEquals('?zip=foo/bar%2Bbaz', $url('foo/bar+baz'));
         $this->assertEquals('?zip=foo/bar%23baz', $url('foo/bar#baz'));