diff --git a/layouts/shortcodes/imgthumb.html b/layouts/shortcodes/imgthumb.html
index 084d767..d0813cc 100644
--- a/layouts/shortcodes/imgthumb.html
+++ b/layouts/shortcodes/imgthumb.html
@@ -1,7 +1,7 @@
 {{ $image := resources.GetMatch (.Get "src") }}
 {{ $size := .Get "size" }}
 {{/* Set the right options for Resize */}}
-{{ $options := printf "%s %s %s" $size "jpg q90" "Box"}}
+{{ $options := printf "%s %s %s" $size "webp q90 drawing" "Lanczos"}}
 {{ $imagethumbnail := $image.Resize $options }}
 
 <figure{{ with .Get "class" }} class="{{ . }}"{{ end }}>
diff --git a/layouts/shortcodes/multithumb.html b/layouts/shortcodes/multithumb.html
index 3787feb..4443648 100644
--- a/layouts/shortcodes/multithumb.html
+++ b/layouts/shortcodes/multithumb.html
@@ -1,7 +1,7 @@
 <div class="gallery flex justify-center">
 {{ range $param := .Params }}
   {{ $image := resources.GetMatch ($param) }}
-  {{ $processed := $image.Resize ( printf "x%d %s %s %s" 350 "jpg" "q90" "Box" ) }}
+  {{ $processed := $image.Resize ( printf "x%d %s %s %s %s" 350 "webp" "q90" "drawing" "Box" ) }}
       <a href="{{ $image.RelPermalink }}">
         <img class="thumbnail w6 pa1 mr1" src="{{ $processed.RelPermalink }}" style="width: 95% !important;" />
   </a>