diff --git a/assets/Tupfile b/assets/Tupfile
index b0adc4f..6d9cf2c 100644
--- a/assets/Tupfile
+++ b/assets/Tupfile
@@ -1 +1 @@
-: foreach svg/*.svg |> convert -background none %f %o |> png/%B.png
+: foreach svg/*.svg |> rsvg-convert --background-color transparent --format Png --height 400 --output %o %f |> png/%B.png