diff --git a/src/pages/en/events/2024-12-20-genai-sympo-ws/index.md b/src/pages/en/events/2024-12-20-genai-sympo-ws/index.md
index 9c35ccc113..27372a44ba 100644
--- a/src/pages/en/events/2024-12-20-genai-sympo-ws/index.md
+++ b/src/pages/en/events/2024-12-20-genai-sympo-ws/index.md
@@ -40,7 +40,7 @@ This symposium and workshop aim not only to impart knowledge but also to foster
 ## Registration
 
 * Please register through [the event registration page](https://forms.office.com/r/9YxpcArnta).
-* You can register at any time before the event, but to group participants in advance, please register by December 2 (Monday) if possible.  You can register and participate in the workshop after that, but we appreciate your cooperation to register early.
+* You can register at any time before the event, but to group participants in advance, please register by <strike>December 2 (Monday)</strike> December 9 (Monday) if possible.  You can register and participate in the workshop after that, but we appreciate your cooperation to register early.  You are welcome to partially participate in the workshop based on your availability.
 * Contact: Information Systems Support Group, Information Systems Department
 * Email: systemshien.adm@gs.mail.u-tokyo.ac.jp
 
diff --git a/src/pages/events/2024-12-20-genai-sympo-ws/index.md b/src/pages/events/2024-12-20-genai-sympo-ws/index.md
index d1119cd57d..87bf8b1618 100644
--- a/src/pages/events/2024-12-20-genai-sympo-ws/index.md
+++ b/src/pages/events/2024-12-20-genai-sympo-ws/index.md
@@ -34,7 +34,7 @@ title: "「生成AIと教育について考える」シンポジウム＋東大
 ## 参加申込
 
 * こちらの[参加申込ページ](https://forms.office.com/r/9YxpcArnta)から登録して下さい。
-* 当日まで申込可能ですが、ワークショップにおけるグルーピングを事前に行うために、なるべく12月2日(月)までに登録をお願いします。それ以降も申込み・ワークショップへの参加は可能ですが、早めの登録にご協力下さい。
+* 当日まで申込可能ですが、ワークショップにおけるグルーピングを事前に行うために、なるべく<strike>12月2日(月)</strike> 12月9日(月) までに登録をお願いします。それ以降も申込み・ワークショップへの参加は可能ですが、早めの登録にご協力下さい。ご都合により一部のみの参加も可能です。
 * 本件連絡先: 情報システム部情報支援課 
 * Email: systemshien.adm@gs.mail.u-tokyo.ac.jp