diff --git a/image_generator.py b/image_generator.py
index 624f934..ffef3ff 100644
--- a/image_generator.py
+++ b/image_generator.py
@@ -133,7 +133,7 @@ class ImageGenerator:
             await browser.close()
             
             # 上传图片
-            image_url = utils.upload_image(image_path)
+            image_url = utils.upload_image(image_path, image_path)
             
             # 删除本地文件
             try:
@@ -216,7 +216,7 @@ class ImageGenerator:
             await browser.close()
             
             # 上传图片
-            image_url = utils.upload_image(image_path)
+            image_url = utils.upload_image(image_path, image_path)
             
             # 删除本地文件
             try:
diff --git a/utils.py b/utils.py
index b367b19..ff46385 100644
--- a/utils.py
+++ b/utils.py
@@ -271,7 +271,7 @@ def upload_image(image_path, file_name=None):
         
         # 生成唯一的文件名
         if not file_name:
-            timestamp = datetime.now().strftime('%Y%m%d%H%M%S')
+            timestamp = datetime.datetime.now().strftime('%Y%m%d%H%M%S')
             random_id = str(uuid.uuid4())[:8]
             file_extension = os.path.splitext(image_path)[1]
             object_key = f'dotabot/{timestamp}_{random_id}{file_extension}'