diff --git a/src/Rules/PHPUnit/DataProviderHelper.php b/src/Rules/PHPUnit/DataProviderHelper.php
index 338d716..5f65656 100644
--- a/src/Rules/PHPUnit/DataProviderHelper.php
+++ b/src/Rules/PHPUnit/DataProviderHelper.php
@@ -285,7 +285,7 @@ private function parseDataProviderExternalAttribute(Attribute $attribute): ?arra
 	}
 
 	/**
-	 * @return array<string, array{(ClassReflection|null), string, int}>|null
+	 * @return array<string, array{ClassReflection, string, int}>|null
 	 */
 	private function parseDataProviderAttribute(Attribute $attribute, ClassReflection $classReflection): ?array
 	{