diff --git a/composer.json b/composer.json
index 18b72aa..f45aa6a 100644
--- a/composer.json
+++ b/composer.json
@@ -27,9 +27,9 @@
         "cdn77/coding-standard": "^7.0",
         "infection/infection": "^0.29.0",
         "phpstan/extension-installer": "^1.0",
-        "phpstan/phpstan": "^1",
-        "phpstan/phpstan-phpunit": "^1",
-        "phpstan/phpstan-strict-rules": "^1"
+        "phpstan/phpstan": "^2",
+        "phpstan/phpstan-phpunit": "^2",
+        "phpstan/phpstan-strict-rules": "^2"
     },
     "config": {
         "allow-plugins": {
diff --git a/src/TestCheck/EveryTestHasGroup.php b/src/TestCheck/EveryTestHasGroup.php
index 78aa448..56aaecd 100644
--- a/src/TestCheck/EveryTestHasGroup.php
+++ b/src/TestCheck/EveryTestHasGroup.php
@@ -48,6 +48,7 @@ public function run(TestCase $testCaseContext): void
                 continue;
             }
 
+            /** @var array<string> $groups */
             $groups = array_map(
                 static fn ($groupAttribute) => $groupAttribute->getArguments()[0],
                 $classReflection->getAttributes(Group::class),
diff --git a/tests/StubTest.php b/tests/StubTest.php
index 2c97aaa..c5bf365 100644
--- a/tests/StubTest.php
+++ b/tests/StubTest.php
@@ -18,7 +18,7 @@ public function testValueIsDefaultWhenNotSet(): void
 
         $stub = Stub::create(SimpleClass::class);
 
-        $stub->getProperty1();
+        $x = $stub->getProperty1();
     }
 
     public function testPropertyIsSetBypassingConstructor(): void