diff --git a/app/Services/ImageService.php b/app/Services/ImageService.php
index bb4f54a0..f10f5844 100644
--- a/app/Services/ImageService.php
+++ b/app/Services/ImageService.php
@@ -567,7 +567,7 @@ class ImageService
                     $height = (int)($h * $scale);
                 }
 
-                $img->fit($width, $height, fn($constraint) => $constraint->upsize())->encode('png')->save($pathname);
+                $img->fit($width, $height, fn($constraint) => $constraint->upsize())->encode('png', 60)->save($pathname);
                 $img->destroy();
             } catch (\Throwable $e) {
                 Utils::e($e, '生成缩略图时出现异常');