diff --git a/app/admin/controller/File.php b/app/admin/controller/File.php
index 40afbe5..87eb1b4 100644
--- a/app/admin/controller/File.php
+++ b/app/admin/controller/File.php
@@ -104,6 +104,11 @@ class File extends Common
         $mime_type = $mime_detector->detectMimeTypeFromBuffer($file_data);
         $ext_name = array_search($mime_type, GeneratedExtensionToMimeTypeMap::MIME_TYPES_FOR_EXTENSIONS);
 
+        // jpe/jpeg 统一为更常见的 jpg
+        if ($ext_name === 'jpe' || $ext_name === 'jpeg') {
+            $ext_name = 'jpg';
+        }
+
         $public_file_path = '/temp_img/' . uniqid() . '.' . $ext_name;
 
         $temp_file = App::getRootPath() . 'public' . $public_file_path;