diff --git a/composer.json b/composer.json
index b3f380e..cf7ae0a 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
         "phpstan/phpstan-phpunit": "^2.0",
         "phpstan/phpstan-strict-rules": "^2.0",
         "phpstan/phpstan-webmozart-assert": "^2.0",
-        "phpunit/phpunit": "^10",
+        "phpunit/phpunit": "^11",
         "rector/rector": "^2.2",
         "roave/no-floaters": "^1.13",
         "shipmonk/phpstan-rules": "^4.2",
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 3dd1d0b..f2a70c4 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="./vendor/autoload.php" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd" cacheDirectory=".phpunit.cache">
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="./vendor/autoload.php" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.0/phpunit.xsd" cacheDirectory=".phpunit.cache">
   <testsuites>
     <testsuite name="main">
       <directory>./tests/</directory>
diff --git a/tests/Rules/DateTimeMustNotBeUsedRuleTest.php b/tests/Rules/DateTimeMustNotBeUsedRuleTest.php
index 1445c3a..779a571 100644
--- a/tests/Rules/DateTimeMustNotBeUsedRuleTest.php
+++ b/tests/Rules/DateTimeMustNotBeUsedRuleTest.php
@@ -7,6 +7,7 @@
 use AssoConnect\PHPStanRules\Rules\DateTimeMustNotBeUsedRule;
 use PHPStan\Rules\Rule;
 use PHPStan\Testing\RuleTestCase;
+use PHPUnit\Framework\Attributes\Group;
 
 /** @extends RuleTestCase<DateTimeMustNotBeUsedRule> */
 class DateTimeMustNotBeUsedRuleTest extends RuleTestCase
@@ -16,7 +17,7 @@ public function getRule(): Rule
         return new DateTimeMustNotBeUsedRule();
     }
 
-    /** @group unit */
+    #[Group('unit')]
     public function testTruePositivesAreDetected(): void
     {
         $this->analyse([__DIR__ . '/DateTimeMustNotBeUsedRule.file.php'], [