diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 38fedcf6..6aa16b83 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -11,4 +11,9 @@
             <directory suffix=".php">src/</directory>
         </whitelist>
     </filter>
+
+    <php>
+        <!-- E_ALL (32767) -->
+        <ini name="error_reporting" value="32767"/>
+    </php>
 </phpunit>
diff --git a/src/Traits/FactoryTrait.php b/src/Traits/FactoryTrait.php
index 4a036581..5ebae315 100644
--- a/src/Traits/FactoryTrait.php
+++ b/src/Traits/FactoryTrait.php
@@ -336,6 +336,7 @@ public static function createFromArray(array $values): ChronosInterface
      * @param \DateTimeZone|string|null $tz The DateTimeZone object or timezone name the new instance should use.
      * @return static
      */
+    #[\ReturnTypeWillChange]
     public static function createFromTimestamp(float|int $timestamp, $tz = null): ChronosInterface
     {
         $instance = static::now($tz)->setTimestamp($timestamp);