--- /n/sources/plan9/sys/lib/dist/mkfile	Mon Dec  2 22:01:26 2013
+++ /sys/lib/dist/mkfile	Mon Jan 26 00:00:00 2026
@@ -141,8 +140,7 @@
 				mv  $stem.iso.bz2 _$stem.iso.bz2
 			mv n$stem.iso.bz2 $stem.iso.bz2
 		}
-		echo `{date} md5 `{md5sum <$stem.iso.bz2} \
-			sha1 `{sha1sum <$stem.iso.bz2} \
+		echo `{date} sha256 `{sha1sum -2 256 <$stem.iso.bz2} \
 			$stem.iso.bz2 >>/usr/web/plan9checksums.txt
 	}