diff --git a/tests/Browser/AuthenticationTest.php b/tests/Browser/AuthenticationTest.php
index 0a07e8f..a583aab 100644
--- a/tests/Browser/AuthenticationTest.php
+++ b/tests/Browser/AuthenticationTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests\Browser;
 
 use Illuminate\Foundation\Testing\DatabaseMigrations;
@@ -19,9 +21,9 @@ class AuthenticationTest extends DuskTestCase
         $this->user = User::factory()->create();
     }
 
-    public function testUserCanLogout()
+    public function testUserCanLogout(): void
     {
-        $this->browse(function (Browser $browser) {
+        $this->browse(function (Browser $browser): void {
             $browser->loginAs($this->user)
                 ->visit("/")
                 ->assertVisible("@user-menu")
diff --git a/tests/Browser/Pages/HomePage.php b/tests/Browser/Pages/HomePage.php
index 26bf174..9b351bb 100644
--- a/tests/Browser/Pages/HomePage.php
+++ b/tests/Browser/Pages/HomePage.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests\Browser\Pages;
 
 use Laravel\Dusk\Browser;
@@ -13,16 +15,13 @@ class HomePage extends Page
      */
     public function url()
     {
-        return '/';
+        return "/";
     }
 
     /**
      * Assert that the browser is on the page.
-     *
-     * @param  \Laravel\Dusk\Browser  $browser
-     * @return void
      */
-    public function assert(Browser $browser)
+    public function assert(Browser $browser): void
     {
         //
     }
@@ -35,7 +34,7 @@ class HomePage extends Page
     public function elements()
     {
         return [
-            '@element' => '#selector',
+            "@element" => "#selector",
         ];
     }
 }
diff --git a/tests/Browser/Pages/Page.php b/tests/Browser/Pages/Page.php
index f8d7622..dcef466 100644
--- a/tests/Browser/Pages/Page.php
+++ b/tests/Browser/Pages/Page.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Tests\Browser\Pages;
 
 use Laravel\Dusk\Page as BasePage;
@@ -14,7 +16,7 @@ abstract class Page extends BasePage
     public static function siteElements()
     {
         return [
-            '@element' => '#selector',
+            "@element" => "#selector",
         ];
     }
 }