diff --git a/src/Illuminate/Contracts/Mail/Factory.php b/src/Illuminate/Contracts/Mail/Factory.php
index 0719c0514595..fe45a2fd9cd8 100644
--- a/src/Illuminate/Contracts/Mail/Factory.php
+++ b/src/Illuminate/Contracts/Mail/Factory.php
@@ -8,7 +8,7 @@ interface Factory
      * Get a mailer instance by name.
      *
      * @param  string|null  $name
-     * @return \Illuminate\Mail\Mailer
+     * @return \Illuminate\Contracts\Mail\Mailer
      */
     public function mailer($name = null);
 }
diff --git a/src/Illuminate/Foundation/Testing/Concerns/InteractsWithViews.php b/src/Illuminate/Foundation/Testing/Concerns/InteractsWithViews.php
index 574009a68f95..bbc65c7a10c2 100644
--- a/src/Illuminate/Foundation/Testing/Concerns/InteractsWithViews.php
+++ b/src/Illuminate/Foundation/Testing/Concerns/InteractsWithViews.php
@@ -18,7 +18,7 @@ trait InteractsWithViews
      * @param  \Illuminate\Contracts\Support\Arrayable|array  $data
      * @return \Illuminate\Testing\TestView
      */
-    protected function view(string $view, array $data = [])
+    protected function view(string $view, $data = [])
     {
         return new TestView(view($view, $data));
     }
@@ -30,7 +30,7 @@ protected function view(string $view, array $data = [])
      * @param  \Illuminate\Contracts\Support\Arrayable|array  $data
      * @return \Illuminate\Testing\TestView
      */
-    protected function blade(string $template, array $data = [])
+    protected function blade(string $template, $data = [])
     {
         $tempDirectory = sys_get_temp_dir();
 
@@ -52,7 +52,7 @@ protected function blade(string $template, array $data = [])
      * @param  \Illuminate\Contracts\Support\Arrayable|array  $data
      * @return \Illuminate\Testing\TestView
      */
-    protected function component(string $componentClass, array $data = [])
+    protected function component(string $componentClass, $data = [])
     {
         $component = $this->app->make($componentClass, $data);
 
diff --git a/src/Illuminate/Mail/MailManager.php b/src/Illuminate/Mail/MailManager.php
index 97fcda7827c5..86acdde3e3aa 100644
--- a/src/Illuminate/Mail/MailManager.php
+++ b/src/Illuminate/Mail/MailManager.php
@@ -63,7 +63,7 @@ public function __construct($app)
      * Get a mailer instance by name.
      *
      * @param  string|null  $name
-     * @return \Illuminate\Mail\Mailer
+     * @return \Illuminate\Contracts\Mail\Mailer
      */
     public function mailer($name = null)
     {
diff --git a/src/Illuminate/Support/Testing/Fakes/MailFake.php b/src/Illuminate/Support/Testing/Fakes/MailFake.php
index eb548b6910b3..a42fe341f40e 100644
--- a/src/Illuminate/Support/Testing/Fakes/MailFake.php
+++ b/src/Illuminate/Support/Testing/Fakes/MailFake.php
@@ -276,7 +276,7 @@ protected function queuedMailablesOf($type)
      * Get a mailer instance by name.
      *
      * @param  string|null  $name
-     * @return \Illuminate\Mail\Mailer
+     * @return \Illuminate\Contracts\Mail\Mailer
      */
     public function mailer($name = null)
     {