diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index ac5061e..60cb564 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,27 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.1/phpunit.xsd"
-         backupGlobals="false"
-         colors="true"
-         bootstrap="./vendor/autoload.php"
-        >
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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>
-        <ini name="error_reporting" value="-1" />
-        <ini name="intl.default_locale" value="en" />
-        <ini name="intl.error_level" value="0" />
-        <ini name="memory_limit" value="-1" />
+        <ini name="error_reporting" value="-1"/>
+        <ini name="intl.default_locale" value="en"/>
+        <ini name="intl.error_level" value="0"/>
+        <ini name="memory_limit" value="-1"/>
     </php>
-
     <testsuites>
         <testsuite name="Test suite">
             <directory suffix="Test.php">./tests</directory>
         </testsuite>
     </testsuites>
-
-    <filter>
-        <whitelist>
-            <directory>./src</directory>
-        </whitelist>
-    </filter>
-</phpunit>
\ No newline at end of file
+</phpunit>