diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
index 40f9104139..41dc62aaea 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Controller/AbstractControllerTest.php
@@ -429,10 +429,10 @@ class AbstractControllerTest extends TestCase
     {
         $formView = new FormView();
 
-        $form = $this->getMockBuilder(FormInterface::class)->getMock();
+        $form = $this->createMock(FormInterface::class);
         $form->expects($this->once())->method('createView')->willReturn($formView);
 
-        $twig = $this->getMockBuilder(Environment::class)->disableOriginalConstructor()->getMock();
+        $twig = $this->createMock(Environment::class);
         $twig->expects($this->once())->method('render')->with('foo', ['form' => $formView, 'bar' => 'bar'])->willReturn('bar');
 
         $container = new Container();
@@ -451,12 +451,12 @@ class AbstractControllerTest extends TestCase
     {
         $formView = new FormView();
 
-        $form = $this->getMockBuilder(FormInterface::class)->getMock();
+        $form = $this->createMock(FormInterface::class);
         $form->expects($this->once())->method('createView')->willReturn($formView);
         $form->expects($this->once())->method('isSubmitted')->willReturn(true);
         $form->expects($this->once())->method('isValid')->willReturn(false);
 
-        $twig = $this->getMockBuilder(Environment::class)->disableOriginalConstructor()->getMock();
+        $twig = $this->createMock(Environment::class);
         $twig->expects($this->once())->method('render')->with('foo', ['form' => $formView, 'bar' => 'bar'])->willReturn('bar');
 
         $container = new Container();
diff --git a/src/Symfony/Component/Security/Core/Tests/Authorization/AccessDecisionManagerTest.php b/src/Symfony/Component/Security/Core/Tests/Authorization/AccessDecisionManagerTest.php
index e2c5ea0fde..375fb6d6d4 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authorization/AccessDecisionManagerTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authorization/AccessDecisionManagerTest.php
@@ -44,7 +44,7 @@ class AccessDecisionManagerTest extends TestCase
      */
     public function testDeprecatedVoter($strategy)
     {
-        $token = $this->getMockBuilder(\Symfony\Component\Security\Core\Authentication\Token\TokenInterface::class)->getMock();
+        $token = $this->createMock(TokenInterface::class);
         $manager = new AccessDecisionManager([$this->getVoter(3)], $strategy);
 
         $this->expectDeprecation('Since symfony/security-core 5.3: Returning "3" in "%s::vote()" is deprecated, return one of "Symfony\Component\Security\Core\Authorization\Voter\VoterInterface" constants: "ACCESS_GRANTED", "ACCESS_DENIED" or "ACCESS_ABSTAIN".');
diff --git a/src/Symfony/Component/Serializer/Tests/Normalizer/ArrayDenormalizerTest.php b/src/Symfony/Component/Serializer/Tests/Normalizer/ArrayDenormalizerTest.php
index 62b51946d2..dfbf01806b 100644
--- a/src/Symfony/Component/Serializer/Tests/Normalizer/ArrayDenormalizerTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Normalizer/ArrayDenormalizerTest.php
@@ -74,7 +74,7 @@ class ArrayDenormalizerTest extends TestCase
      */
     public function testDenormalizeLegacy()
     {
-        $serializer = $this->getMockBuilder(Serializer::class)->getMock();
+        $serializer = $this->createMock(Serializer::class);
 
         $serializer->expects($this->exactly(2))
             ->method('denormalize')