diff --git a/src/Knp/Snappy/AbstractGenerator.php b/src/Knp/Snappy/AbstractGenerator.php
index 2a93529b..529bc7cd 100644
--- a/src/Knp/Snappy/AbstractGenerator.php
+++ b/src/Knp/Snappy/AbstractGenerator.php
@@ -65,7 +65,7 @@ abstract class AbstractGenerator implements GeneratorInterface, LoggerAwareInter
      * @param array       $options
      * @param null|array  $env
      */
-    public function __construct($binary, array $options = [], array $env = null)
+    public function __construct($binary, array $options = [], array|null $env = null)
     {
         $this->configure();
 
diff --git a/src/Knp/Snappy/Image.php b/src/Knp/Snappy/Image.php
index a66310be..55dd03c4 100644
--- a/src/Knp/Snappy/Image.php
+++ b/src/Knp/Snappy/Image.php
@@ -13,7 +13,7 @@ class Image extends AbstractGenerator
     /**
      * {@inheritdoc}
      */
-    public function __construct($binary = null, array $options = [], array $env = null)
+    public function __construct($binary = null, array $options = [], array|null $env = null)
     {
         $this->setDefaultExtension('jpg');
 
diff --git a/src/Knp/Snappy/Pdf.php b/src/Knp/Snappy/Pdf.php
index b3a51ade..d177dee7 100644
--- a/src/Knp/Snappy/Pdf.php
+++ b/src/Knp/Snappy/Pdf.php
@@ -18,7 +18,7 @@ class Pdf extends AbstractGenerator
     /**
      * {@inheritdoc}
      */
-    public function __construct($binary = null, array $options = [], array $env = null)
+    public function __construct($binary = null, array $options = [], array|null $env = null)
     {
         $this->setDefaultExtension('pdf');
         $this->setOptionsWithContentCheck();
diff --git a/tests/Knp/Snappy/PdfTest.php b/tests/Knp/Snappy/PdfTest.php
index 76ef84aa..22d12ce9 100644
--- a/tests/Knp/Snappy/PdfTest.php
+++ b/tests/Knp/Snappy/PdfTest.php
@@ -3,13 +3,13 @@
 namespace Tests\Knp\Snappy;
 
 use Knp\Snappy\Pdf;
-use PHPUnit\Framework\Error\Error;
 use PHPUnit\Framework\TestCase;
 use RecursiveDirectoryIterator;
 use FilesystemIterator;
 use CallbackFilterIterator;
 use DirectoryIterator;
 use ReflectionMethod;
+use RuntimeException;
 
 class PdfTest extends TestCase
 {
@@ -79,8 +79,9 @@ public function testRemovesLocalFilesOnError(): void
         $method->setAccessible(true);
         $method->invoke($pdf, 'test', $pdf->getDefaultExtension());
         $this->assertEquals(1, \count($pdf->temporaryFiles));
-        $this->expectException(Error::class);
-        \trigger_error('test error', \E_USER_ERROR);
+        $this->expectException(RuntimeException::class);
+
+        throw new RuntimeException('test error.');
         // @phpstan-ignore-next-line See https://github.com/phpstan/phpstan/issues/7799
         $this->assertFileNotExists(\reset($pdf->temporaryFiles));
     }