diff --git a/media_manager/metadataProvider/utils.py b/media_manager/metadataProvider/utils.py
index 683bfd7..4e42c10 100644
--- a/media_manager/metadataProvider/utils.py
+++ b/media_manager/metadataProvider/utils.py
@@ -1,3 +1,4 @@
+from pathlib import Path
 from uuid import UUID
 
 from PIL import Image
@@ -11,16 +12,16 @@ def get_year_from_date(first_air_date: str | None) -> int | None:
         return None
 
 
-def download_poster_image(storage_path=None, poster_url=None, id: UUID = None) -> bool:
+def download_poster_image(storage_path: Path, poster_url: str, id: UUID) -> bool:
     res = requests.get(poster_url, stream=True)
-    if res.status_code == 200:
-        image_file_path = storage_path.joinpath(str(id))
-        with open(str(image_file_path) + ".jpg", "wb") as f:
-            f.write(res.content)
 
-        original_image = Image.open(str(image_file_path) + ".jpg")
-        original_image.save(str(image_file_path) + ".avif", quality=50)
-        original_image.save(str(image_file_path) + ".webp", quality=50)
+    if res.status_code == 200:
+        image_file_path = storage_path.joinpath(str(id)).with_suffix("jpg")
+        image_file_path.write_bytes(res.content)
+
+        original_image = Image.open(image_file_path)
+        original_image.save(image_file_path.with_suffix(".avif"), quality=50)
+        original_image.save(image_file_path.with_suffix(".webp"), quality=50)
         return True
     else:
         return False