diff --git a/README.md b/README.md
index d608f32..700b80a 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,8 @@ use bkrukowski\TransparentEmail\Emails\EmailInterface;
 use bkrukowski\TransparentEmail\Emails\InvalidEmailException;
 
 try {
-    $cleaner = TransparentEmailFactory::createDefault();
+    $factory = new TransparentEmailFactory();
+    $cleaner = $factory->createDefault();
     $inputEmail = new Email('John.Doe+alias@gmail.com');
     /** @var EmailInterface $transformedEmail */
     $transformedEmail = $cleaner->getPrimaryEmail($inputEmail);
diff --git a/src/TransparentEmailFactory.php b/src/TransparentEmailFactory.php
index 8765924..fff5cd7 100644
--- a/src/TransparentEmailFactory.php
+++ b/src/TransparentEmailFactory.php
@@ -13,23 +13,23 @@ use bkrukowski\TransparentEmail\Services\YahooCom;
 
 class TransparentEmailFactory
 {
-    public static function createDefault() : TransparentEmailInterface
+    public function createDefault() : TransparentEmailInterface
     {
-        return new TransparentEmail(self::createServiceCollector());
+        return new TransparentEmail($this->createServiceCollector());
     }
 
-    private static function createServiceCollector() : ServiceCollectorInterface
+    private function createServiceCollector() : ServiceCollectorInterface
     {
         $collector = new ServiceCollector();
 
-        foreach (self::getAllServicesClasses() as $servicesClass) {
+        foreach ($this->getAllServicesClasses() as $servicesClass) {
             $collector->addService(new $servicesClass());
         }
 
         return $collector;
     }
 
-    private static function getAllServicesClasses() : array
+    private function getAllServicesClasses() : array
     {
         return [
             GmailCom::class,
diff --git a/tests/TransparentEmailFactoryTest.php b/tests/TransparentEmailFactoryTest.php
index b54366d..d84b919 100644
--- a/tests/TransparentEmailFactoryTest.php
+++ b/tests/TransparentEmailFactoryTest.php
@@ -18,7 +18,7 @@ class TransparentEmailFactoryTest extends \PHPUnit_Framework_TestCase
      */
     public function testExpectedEmail(EmailInterface $inputEmail, string $expectedEmail)
     {
-        $outputEmail = TransparentEmailFactory::createDefault()->getPrimaryEmail($inputEmail);
+        $outputEmail = (new TransparentEmailFactory())->createDefault()->getPrimaryEmail($inputEmail);
         $this->assertSame($expectedEmail, (string) $outputEmail);
     }
 
diff --git a/tests/TransparentEmailTest.php b/tests/TransparentEmailTest.php
index bd1c56f..ae69db6 100644
--- a/tests/TransparentEmailTest.php
+++ b/tests/TransparentEmailTest.php
@@ -42,12 +42,12 @@ class TransparentEmailTest extends \PHPUnit_Framework_TestCase
                 'john.doe+alias@gmail.com',
                 'john.doe+alias@gmail.com'
             ],
-            [TransparentEmailFactory::createDefault(), 'john.doe+alias@gmail.com', 'johndoe@gmail.com'],
+            [(new TransparentEmailFactory())->createDefault(), 'john.doe+alias@gmail.com', 'johndoe@gmail.com'],
             [new TransparentEmail($emptyServiceCollector), 'John.Doe@example.com', 'john.doe@example.com'],
             [new TransparentEmail($emptyServiceCollector), 'John.Doe@example.com', 'John.Doe@example.com', true],
-            [TransparentEmailFactory::createDefault(), 'John.Doe@gmail.com', 'johndoe@gmail.com', true],
-            [TransparentEmailFactory::createDefault(), 'Jane.Doe+receipts@hotmail.com', 'jane.doe@hotmail.com'],
-            [TransparentEmailFactory::createDefault(), 'Jane.Doe-receipts@yahoo.com', 'jane.doe@yahoo.com'],
+            [(new TransparentEmailFactory())->createDefault(), 'John.Doe@gmail.com', 'johndoe@gmail.com', true],
+            [(new TransparentEmailFactory())->createDefault(), 'Jane.Doe+receipts@hotmail.com', 'jane.doe@hotmail.com'],
+            [(new TransparentEmailFactory())->createDefault(), 'Jane.Doe-receipts@yahoo.com', 'jane.doe@yahoo.com'],
         ];
     }
 
@@ -59,7 +59,7 @@ class TransparentEmailTest extends \PHPUnit_Framework_TestCase
      */
     public function testDefault(EmailInterface $inputEmail, string $expectedEmail)
     {
-        $this->assertEquals($expectedEmail, (TransparentEmailFactory::createDefault())->getPrimaryEmail($inputEmail));
+        $this->assertEquals($expectedEmail, ((new TransparentEmailFactory())->createDefault())->getPrimaryEmail($inputEmail));
     }
 
     public function providerDefault() : array