diff --git i/beets/util/artresizer.py w/beets/util/artresizer.py
index 8683e228..6f99c79e 100644
--- i/beets/util/artresizer.py
+++ w/beets/util/artresizer.py
@@ -72,7 +72,7 @@ def pil_resize(maxwidth, path_in, path_out=None, quality=0, max_filesize=0):
     try:
         im = Image.open(util.syspath(path_in))
         size = maxwidth, maxwidth
-        im.thumbnail(size, Image.ANTIALIAS)
+        im.thumbnail(size, Image.Resampling.LANCZOS)
 
         if quality == 0:
             # Use PIL's default quality.