diff --git a/phpunit.xml b/phpunit.xml
index 0eeedca..98c0c73 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,29 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit backupGlobals="false"
-         backupStaticAttributes="false"
-         bootstrap="vendor/autoload.php"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         processIsolation="false"
-         stopOnFailure="false">
-	<testsuites>
-		<testsuite name="Tests">
-			<directory suffix="Test.php">./tests</directory>
-		</testsuite>
-	</testsuites>
-	<filter>
-		<whitelist processUncoveredFilesFromWhitelist="true">
-			<directory suffix=".php">./src</directory>
-		</whitelist>
-	</filter>
-	<php>
-		<env name="APP_ENV" value="testing"/>
-		<env name="BCRYPT_ROUNDS" value="4"/>
-		<env name="CACHE_DRIVER" value="array"/>
-		<env name="SESSION_DRIVER" value="array"/>
-		<env name="QUEUE_DRIVER" value="sync"/>
-		<env name="MAIL_DRIVER" value="array"/>
-	</php>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="false" backupStaticAttributes="false" bootstrap="vendor/autoload.php" colors="true" convertErrorsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true" processIsolation="false" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
+  <coverage processUncoveredFiles="true">
+    <include>
+      <directory suffix=".php">./src</directory>
+    </include>
+  </coverage>
+  <testsuites>
+    <testsuite name="Tests">
+      <directory suffix="Test.php">./tests</directory>
+    </testsuite>
+  </testsuites>
+  <php>
+    <env name="APP_ENV" value="testing"/>
+    <env name="BCRYPT_ROUNDS" value="4"/>
+    <env name="CACHE_DRIVER" value="array"/>
+    <env name="SESSION_DRIVER" value="array"/>
+    <env name="QUEUE_DRIVER" value="sync"/>
+    <env name="MAIL_DRIVER" value="array"/>
+  </php>
 </phpunit>