diff --git a/tests/phpunit/CiviTest/CiviUnitTestCase.php b/tests/phpunit/CiviTest/CiviUnitTestCase.php
index 95d0bb3d62e0f422e83eeba2ff879fbe7f07bc80..3c279cad874bf7b86a28d1de7a0ae82136027020 100644
--- a/tests/phpunit/CiviTest/CiviUnitTestCase.php
+++ b/tests/phpunit/CiviTest/CiviUnitTestCase.php
@@ -52,7 +52,7 @@ define('API_LATEST_VERSION', 3);
  *  Common functions for unit tests
  * @package CiviCRM
  */
-class CiviUnitTestCase extends PHPUnit_Framework_TestCase {
+class CiviUnitTestCase extends PHPUnit\Framework\TestCase {
 
   use \Civi\Test\Api3DocTrait;
   use \Civi\Test\GenericAssertionsTrait;