diff --git a/src/Image/Image.php b/src/Image/Image.php
index 2fb3717..b0f8854 100644
--- a/src/Image/Image.php
+++ b/src/Image/Image.php
@@ -54,7 +54,7 @@ public function __construct($data)
      *
      * @throws \Throwable
      */
-    public function crop(int $width, int $height, int $gravity = Image::GRAVITY_CENTER)
+    public function crop(int $width, int $height, string $gravity = Image::GRAVITY_CENTER)
     {
         $originalAspect = $this->width / $this->height;