diff --git a/assets/js/dev/galleryblock.js b/assets/js/dev/galleryblock.js
index a589ef7b..88e58d94 100644
--- a/assets/js/dev/galleryblock.js
+++ b/assets/js/dev/galleryblock.js
@@ -11,7 +11,7 @@ async function get_gallery_block(galleryid) {
     const gallery_url = title_elm.href;
     const title = title_elm.textContent;
 
-    const thumbnails = Array.from(doc.querySelectorAll('.dj-img-cont img'), elm => `https:${elm.getAttribute('data-src')}`);
+    const thumbnails = Array.from(doc.querySelectorAll('.dj-img-cont img'), elm => `https:${elm.getAttribute('data-src').replace('bigtn', 'webpbigtn').replace(/.jpg$/, '.webp')}`);
 
     const artists = Array.from(doc.querySelectorAll('.artist-list a'), elm => elm.innerText);
     const series = Array.from(doc.querySelectorAll('a[href^="/series/"]'), elm => elm.innerText);
diff --git a/hitomi-dev.html.ver b/hitomi-dev.html.ver
index 820dea85..e6c5b462 100644
--- a/hitomi-dev.html.ver
+++ b/hitomi-dev.html.ver
@@ -1 +1 @@
-0.0.7-DEV03
+0.0.7-DEV04
\ No newline at end of file