diff --git a/public/kintone-graphics/qrcode_slidedeck.png b/public/kintone-graphics/qrcode_slidedeck.png
index 6f1af47..17d00c3 100644
Binary files a/public/kintone-graphics/qrcode_slidedeck.png and b/public/kintone-graphics/qrcode_slidedeck.png differ