diff --git a/src/Image.php b/src/Image.php
index 5516f15..d599757 100644
--- a/src/Image.php
+++ b/src/Image.php
@@ -832,7 +832,7 @@ public static function newFromArray(
      * @return Image A new Image.
      */
     public static function newFromMemory(
-        mixed  $data,
+        $data,
         int $width,
         int $height,
         int $bands,