diff --git a/modules/apihelper/client/components/hyperion.py b/modules/apihelper/client/components/hyperion.py
index f522b99..ce04215 100644
--- a/modules/apihelper/client/components/hyperion.py
+++ b/modules/apihelper/client/components/hyperion.py
@@ -97,8 +97,9 @@ class HyperionBase:
     @staticmethod
     async def download_image(client: "HyperionRequest", art_id: int, url: str, page: int = 0) -> List[ArtworkImage]:
         filename = os.path.basename(url)
-        _, file_extension = os.path.splitext(filename)
-        is_image = bool(file_extension in ".jpg" or file_extension in ".png")
+        _, _file_extension = os.path.splitext(filename)
+        file_extension = _file_extension.lower()
+        is_image = file_extension in ".jpg" or file_extension in ".jpeg" or file_extension in ".png"
         response = await client.get(
             url, params=Hyperion.get_images_params(resize=2000) if is_image else None, de_json=False
         )
diff --git a/modules/apihelper/models/genshin/hyperion.py b/modules/apihelper/models/genshin/hyperion.py
index 34365a2..508f01e 100644
--- a/modules/apihelper/models/genshin/hyperion.py
+++ b/modules/apihelper/models/genshin/hyperion.py
@@ -107,7 +107,7 @@ class PostInfo(BaseModel):
         image_keys = {"cover_list", "image_list"}
         for key in image_keys:
             image_list.extend(_data_post.get(key, []))
-        image_urls = [image["url"] for image in image_list]
+        image_urls = list({image["url"] for image in image_list})
         key1, key2 = ("video", "resolution") if hoyolab else ("vod_list", "resolutions")
         vod_list = _data_post.get(key1, [])
         if not isinstance(vod_list, list):