diff --git a/src/Reflection/ReflectionValue.php b/src/Reflection/ReflectionValue.php
index f4587e9..9ac3be5 100644
--- a/src/Reflection/ReflectionValue.php
+++ b/src/Reflection/ReflectionValue.php
@@ -126,7 +126,7 @@ class ReflectionValue implements ReferenceCountedInterface
      *
      * @param mixed $value Any value to be reflected
      */
-    public function __construct($value)
+    public function __construct(mixed $value)
     {
         // Trick here is to look at internal structures and steal pointer to our value from current frame
         $selfExecutionState = Core::$executor->getExecutionState();