diff --git a/bysd_website/image/bj.jpg b/bysd_website/image/bj.jpg
index 6b8c5d2..ed15e23 100644
Binary files a/bysd_website/image/bj.jpg and b/bysd_website/image/bj.jpg differ
diff --git a/bysd_website/image/swiper_02.png b/bysd_website/image/swiper_02.png
index e534d16..ff25697 100644
Binary files a/bysd_website/image/swiper_02.png and b/bysd_website/image/swiper_02.png differ
diff --git a/bysd_website/image/swiper_03.png b/bysd_website/image/swiper_03.png
index ff25697..a0c97ad 100644
Binary files a/bysd_website/image/swiper_03.png and b/bysd_website/image/swiper_03.png differ
diff --git a/bysd_website/image/swiper_04.png b/bysd_website/image/swiper_04.png
deleted file mode 100644
index a0c97ad..0000000
Binary files a/bysd_website/image/swiper_04.png and /dev/null differ
diff --git a/bysd_website/index.html b/bysd_website/index.html
index 137a6c9..f56cf08 100644
--- a/bysd_website/index.html
+++ b/bysd_website/index.html
@@ -38,7 +38,6 @@
                     <li><img src="./image/swiper_01.png" alt=""></li>
                     <li><img src="./image/swiper_02.png" alt=""></li>
                     <li><img src="./image/swiper_03.png" alt=""></li>
-                    <li><img src="./image/swiper_04.png" alt=""></li>
                 </ul>
             </div>
         </div>