diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 41d69a2..992e692 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,24 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
 <!-- https://phpunit.de/manual/current/en/appendixes.configuration.html -->
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/6.5/phpunit.xsd"
-         backupGlobals="false"
-         colors="true"
-         bootstrap="vendor/autoload.php"
->
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd" backupGlobals="false" colors="true"
+         bootstrap="vendor/autoload.php">
+    <coverage>
+        <include>
+            <directory>src</directory>
+        </include>
+    </coverage>
     <php>
     </php>
-
     <testsuites>
         <testsuite name="Project Test Suite">
             <directory>Tests</directory>
         </testsuite>
     </testsuites>
-
-    <filter>
-        <whitelist>
-            <directory>src</directory>
-        </whitelist>
-    </filter>
 </phpunit>