diff --git a/README.md b/README.md
index 3e1a933..d90180f 100644
--- a/README.md
+++ b/README.md
@@ -1673,7 +1673,7 @@ class Square extends Rectangle
     }
 }
 
-function renderLargeRectangles(Rectangle $rectangles): void
+function renderLargeRectangles(array $rectangles): void
 {
     foreach ($rectangles as $rectangle) {
         $rectangle->setWidth(4);
@@ -1736,7 +1736,7 @@ class Square extends Shape
     }
 }
 
-function renderLargeRectangles(Shape $rectangles): void
+function renderLargeRectangles(array $rectangles): void
 {
     foreach ($rectangles as $rectangle) {
         if ($rectangle instanceof Square) {