diff --git a/.gitignore b/.gitignore
index 18bfcd6b..4a9f105c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ vendor
 coverage
 cache/**
 logs/**
+.phpunit.result.cache
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 6a08954c..d3d82a46 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/7.1/phpunit.xsd"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/8.5/phpunit.xsd"
          backupGlobals="false"
          backupStaticAttributes="false"
          beStrictAboutTestsThatDoNotTestAnything="true"
diff --git a/tests/Controllers/ExceptionDemoControllerTest.php b/tests/Controllers/ExceptionDemoControllerTest.php
index 92c957f3..45929218 100644
--- a/tests/Controllers/ExceptionDemoControllerTest.php
+++ b/tests/Controllers/ExceptionDemoControllerTest.php
@@ -11,11 +11,10 @@
 
 class ExceptionDemoControllerTest extends TestCase
 {
-    /**
-     * @expectedException ErrorException
-     */
     public function testInvoke()
     {
+        $this->expectException(ErrorException::class);
+
         $exceptionDemoController = new ExceptionDemoController();
 
         $serverRequest = $this->createMock(ServerRequestInterface::class);