diff --git a/.travis.yml b/.travis.yml
index e5d2dc2..23321dd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,6 +22,8 @@ matrix:
         env: PHPUNIT=~5.7
       - php: 7.1
         env: PHPUNIT=~6
+      - php: 7.2
+        env: PHPUNIT=~6
       - php: nightly
         env: PHPUNIT=~6
       - php: hhvm
diff --git a/composer.json b/composer.json
index fb2ed94..c28dd02 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
     ],
     "require": {
         "php": ">=5.6",
-        "phpunit/phpunit": ">=5.7 <7"
+        "phpunit/phpunit": "^5.7 || ^6.5"
     },
     "autoload": {
         "psr-4": { "MyBuilder\\PhpunitAccelerator\\": "src" }
diff --git a/src/TestListener.php b/src/TestListener.php
index c1f5c50..28857c6 100644
--- a/src/TestListener.php
+++ b/src/TestListener.php
@@ -4,7 +4,7 @@
 
 use PHPUnit\Framework\BaseTestListener;
 
-if (!interface_exists('\PHPUnit\Framework\Test')) {
+if(interface_exists('\PHPUnit_Framework_Test')) {
     class_alias('\PHPUnit_Framework_Test', '\PHPUnit\Framework\Test');
 }
 
diff --git a/tests/TestListenerTest.php b/tests/TestListenerTest.php
index 7ebc91a..5c2cc52 100644
--- a/tests/TestListenerTest.php
+++ b/tests/TestListenerTest.php
@@ -12,10 +12,12 @@ protected function setUp()
         $this->dummyTest = new DummyTest();
     }
 
-    /**
-     * @test
-     */
-    public function shouldFreeTestProperty()
+    protected function tearDown()
+    {
+        unset($this->dummyTest);
+    }
+
+    public function testShouldFreeTestProperty()
     {
         $this->endTest(new TestListener());
 
@@ -32,10 +34,7 @@ private function assertFreesTestProperty()
         $this->assertNull($this->dummyTest->property);
     }
 
-    /**
-     * @test
-     */
-    public function shouldNotFreePhpUnitProperty()
+    public function testShouldNotFreePhpUnitProperty()
     {
         $this->endTest(new TestListener());
 
@@ -47,10 +46,7 @@ private function assertDoesNotFreePHPUnitProperty()
         $this->assertNotNull($this->dummyTest->phpUnitProperty);
     }
 
-    /**
-     * @test
-     */
-    public function shouldNotFreeTestPropertyWithIgnoreAlwaysPolicy()
+    public function testShouldNotFreeTestPropertyWithIgnoreAlwaysPolicy()
     {
         $this->endTest(new TestListener(new AlwaysIgnoreTestPolicy()));