diff --git a/tests/Monolog/Handler/PHPConsoleHandlerTest.php b/tests/Monolog/Handler/PHPConsoleHandlerTest.php
index 0836b995..9c479da6 100644
--- a/tests/Monolog/Handler/PHPConsoleHandlerTest.php
+++ b/tests/Monolog/Handler/PHPConsoleHandlerTest.php
@@ -19,7 +19,7 @@ use PhpConsole\Connector;
 use PhpConsole\Dispatcher\Debug as DebugDispatcher;
 use PhpConsole\Dispatcher\Errors as ErrorDispatcher;
 use PhpConsole\Handler as VendorPhpConsoleHandler;
-use PHPUnit_Framework_MockObject_MockObject;
+use PHPUnit\Framework\MockObject\MockObject;
 
 /**
  * @covers Monolog\Handler\PHPConsoleHandler
@@ -27,11 +27,11 @@ use PHPUnit_Framework_MockObject_MockObject;
  */
 class PHPConsoleHandlerTest extends TestCase
 {
-    /** @var  Connector|PHPUnit_Framework_MockObject_MockObject */
+    /** @var  Connector|MockObject */
     protected $connector;
-    /** @var  DebugDispatcher|PHPUnit_Framework_MockObject_MockObject */
+    /** @var  DebugDispatcher|MockObject */
     protected $debugDispatcher;
-    /** @var  ErrorDispatcher|PHPUnit_Framework_MockObject_MockObject */
+    /** @var  ErrorDispatcher|MockObject */
     protected $errorDispatcher;
 
     protected function setUp()
diff --git a/tests/Monolog/Handler/RollbarHandlerTest.php b/tests/Monolog/Handler/RollbarHandlerTest.php
index 67a0eb68..5d8c1fc2 100644
--- a/tests/Monolog/Handler/RollbarHandlerTest.php
+++ b/tests/Monolog/Handler/RollbarHandlerTest.php
@@ -14,7 +14,7 @@ namespace Monolog\Handler;
 use Exception;
 use Monolog\Test\TestCase;
 use Monolog\Logger;
-use PHPUnit_Framework_MockObject_MockObject as MockObject;
+use PHPUnit\Framework\MockObject\MockObject;
 use Rollbar\RollbarLogger;
 
 /**
diff --git a/tests/Monolog/Handler/SwiftMailerHandlerTest.php b/tests/Monolog/Handler/SwiftMailerHandlerTest.php
index 3c77127b..d8ff39bc 100644
--- a/tests/Monolog/Handler/SwiftMailerHandlerTest.php
+++ b/tests/Monolog/Handler/SwiftMailerHandlerTest.php
@@ -13,10 +13,11 @@ namespace Monolog\Handler;
 
 use Monolog\Logger;
 use Monolog\Test\TestCase;
+use PHPUnit\Framework\MockObject\MockObject;
 
 class SwiftMailerHandlerTest extends TestCase
 {
-    /** @var \Swift_Mailer|\PHPUnit_Framework_MockObject_MockObject */
+    /** @var \Swift_Mailer|MockObject */
     private $mailer;
 
     public function setUp()