diff --git a/url_image_preview/mime_types.py b/url_image_preview/mime_types.py
index 352de17..32c3336 100644
--- a/url_image_preview/mime_types.py
+++ b/url_image_preview/mime_types.py
@@ -63,6 +63,7 @@ MIME_TYPES = (
     'font/woff',
     'font/woff2',
     # image/*
+    'image/avif',
     'image/bmp',
     'image/x-bmp',
     'image/x-ms-bmp',