diff --git a/_config.yml b/_config.yml
index 37414bf..db3b3c3 100644
--- a/_config.yml
+++ b/_config.yml
@@ -29,9 +29,12 @@ event:
   support:
 
 social:
+  - title: State of the Map Japan
+    icon: twitter
+    url: https://x.com/SotM_Japan
   - title: OpenStreetMap Foundation Japan
     icon: twitter
-    url: https://twitter.com/osmfj
+    url: https://x.com/osmfj
   - title: OpenStreetMap Foundation Japan
     icon: facebook
     url: https://www.facebook.com/osmfj
diff --git a/_includes/footer.html b/_includes/footer.html
index 3ff3136..fd80ffa 100644
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -9,7 +9,7 @@
           <li class="nav-item"><a href="./index.html#event-outline" class="nav-link text-white">開催概要</a></li>
           <li class="nav-item"><a href="./index.html#sponser" class="nav-link text-white">スポンサー</a></li>
           <li class="nav-item"><a href="./index.html#timetable" class="nav-link text-white">タイムテーブル</a></li>
-          <!-- li class="nav-item"><a href="https://sotmjp2024.peatix.com/" class="nav-link text-white">参加登録</a></li -->
+          <li class="nav-item"><a href="https://peatix.com/event/4205624" class="nav-link text-white">参加登録</a></li>
           <li class="nav-item"><a href="./coc.html" class="nav-link text-white">行動規範</a></li>
         </ul>
       </div>
diff --git a/_includes/news.html b/_includes/news.html
index bf79bf1..5128808 100644
--- a/_includes/news.html
+++ b/_includes/news.html
@@ -17,6 +17,7 @@ <h2 class="display-6 fw-bold mb-4"><i class="bi bi-newspaper"></i> お知らせ<
               <div class="container col-md-12 col-sm-12">
                 <div class="overflow-auto" style="height:440px;">
                   <ul>
+                    <li>2025/01/09 State of the Map JapanのXへのリンクを追加しました</li>
                     <li>2024/12/25 発表申し込みの締め切りを延長しました</li>
                     <li>2024/12/23 ヘッダーに参加登録を追加しました</li>
                     <li>2022/12/23 <a href="https://locationmind.com/">LocationMind</a>様がコアスポンサーになりました</li>