diff --git a/home/index.html b/home/index.html
index 4f2371c..546dcac 100644
--- a/home/index.html
+++ b/home/index.html
@@ -64,7 +64,7 @@
                     <li class="new">
                         <a href="../2023-activities/index.html">
                           <span class="news-title">お知らせ</span>
-                          <time datetime="2023-08-05">[ 2023.7.5 ]</time>
+                          <time datetime="2023-08-05">[ 2023.8.5 ]</time>
                           <p>本講義2回目を開催しました</p>
                         </a>
                     </li>