diff --git a/Tests/Templating/Twig/AdminGlobalVariableTest.php b/Tests/Templating/Twig/AdminGlobalVariableTest.php
index 00262b40..ee0da283 100644
--- a/Tests/Templating/Twig/AdminGlobalVariableTest.php
+++ b/Tests/Templating/Twig/AdminGlobalVariableTest.php
@@ -3,9 +3,9 @@
 namespace Netgen\TagsBundle\Tests\Templating\Twig;
 
 use Netgen\TagsBundle\Templating\Twig\AdminGlobalVariable;
-use PHPUnit_Framework_TestCase;
+use PHPUnit\Framework\TestCase;
 
-class AdminGlobalVariableTest extends PHPUnit_Framework_TestCase
+class AdminGlobalVariableTest extends TestCase
 {
     /**
      * @var \Netgen\TagsBundle\Templating\Twig\AdminGlobalVariable
diff --git a/Tests/Templating/Twig/Extension/AdminExtensionTest.php b/Tests/Templating/Twig/Extension/AdminExtensionTest.php
index c3825ed0..c6013b09 100644
--- a/Tests/Templating/Twig/Extension/AdminExtensionTest.php
+++ b/Tests/Templating/Twig/Extension/AdminExtensionTest.php
@@ -4,11 +4,11 @@
 
 use Netgen\TagsBundle\Templating\Twig\AdminGlobalVariable;
 use Netgen\TagsBundle\Templating\Twig\Extension\AdminExtension;
-use PHPUnit_Framework_TestCase;
+use PHPUnit\Framework\TestCase;
 use Twig_Extension;
 use Twig_Extension_GlobalsInterface;
 
-class AdminExtensionTest extends PHPUnit_Framework_TestCase
+class AdminExtensionTest extends TestCase
 {
     /**
      * @var \Netgen\TagsBundle\Templating\Twig\Extension\AdminExtension
diff --git a/Tests/Templating/Twig/Extension/NetgenTagsExtensionTest.php b/Tests/Templating/Twig/Extension/NetgenTagsExtensionTest.php
index 7c7560fa..3890886b 100644
--- a/Tests/Templating/Twig/Extension/NetgenTagsExtensionTest.php
+++ b/Tests/Templating/Twig/Extension/NetgenTagsExtensionTest.php
@@ -11,11 +11,11 @@
 use Netgen\TagsBundle\API\Repository\Values\Tags\Tag;
 use Netgen\TagsBundle\Core\Repository\TagsService;
 use Netgen\TagsBundle\Templating\Twig\Extension\NetgenTagsExtension;
-use PHPUnit_Framework_TestCase;
+use PHPUnit\Framework\TestCase;
 use Twig_Extension;
 use Twig_SimpleFunction;
 
-class NetgenTagsExtensionTest extends PHPUnit_Framework_TestCase
+class NetgenTagsExtensionTest extends TestCase
 {
     /**
      * @var \Netgen\TagsBundle\Templating\Twig\Extension\NetgenTagsExtension