diff --git a/src/Pimple/Tests/PimpleTest.php b/src/Pimple/Tests/PimpleTest.php
index 40e87f4..d88ca6d 100644
--- a/src/Pimple/Tests/PimpleTest.php
+++ b/src/Pimple/Tests/PimpleTest.php
@@ -275,11 +275,15 @@ public function testExtendDoesNotLeakWithFactories()
         unset($pimple['foo']);
 
         $p = new \ReflectionProperty($pimple, 'values');
-        $p->setAccessible(true);
+        if (PHP_VERSION < 80100) {
+            $p->setAccessible(true);
+        }
         $this->assertEmpty($p->getValue($pimple));
 
         $p = new \ReflectionProperty($pimple, 'factories');
-        $p->setAccessible(true);
+        if (PHP_VERSION < 80100) {
+            $p->setAccessible(true);
+        }
         $this->assertCount(0, $p->getValue($pimple));
     }