diff --git a/main.py b/main.py
index f061415..0b7c5ba 100644
--- a/main.py
+++ b/main.py
@@ -75,7 +75,7 @@ async def check_updates():
                                                              Image.LANCZOS)
                                     im = Image.new('RGBA', dl_im.size, (255, 255, 255))
                                     composite = Image.alpha_composite(im, dl_im).convert('RGB')
-                                    file.truncate(0)
+                                    file = BytesIO()
                                     composite.save(file, format='JPEG')
                                     file.seek(0)
                                     file.name = 'file.jpg'