diff --git a/home/index.html b/home/index.html
index 0fa9da0..aea63f2 100644
--- a/home/index.html
+++ b/home/index.html
@@ -162,7 +162,7 @@
                 </a>
                 <a class="class_content-item scroll" href="../2023-activities/index.html#class24">
                     <div class="item fadein">
-                      <img class="fadein" src="../2023-activities/img/0106-1.jpg" alt="../class_content/index.html">
+                      <img class="fadein" src="../2023-activities/img/0106-1.JPG" alt="../class_content/index.html">
                       <div class="item-content">
                         <p class="item-cat">class content</p>
                       <p class="item-text">1月6日 本講義</p>