diff --git a/dictation_client/src/pages/TopPage/index.tsx b/dictation_client/src/pages/TopPage/index.tsx
index 7b34d12..1a4e435 100644
--- a/dictation_client/src/pages/TopPage/index.tsx
+++ b/dictation_client/src/pages/TopPage/index.tsx
@@ -109,23 +109,6 @@ const TopPage: React.FC = (): JSX.Element => {
               </dd>
             </dl>
           </div>
-          {/*タスク 4674: メンテナンス告知実装_2025年5月7日保守リリース*/}
-          <div
-            style={{
-              margin: "3rem auto 0",
-              width: "500px",
-            }}
-          >
-            <h4
-              style={{ color: "red", fontWeight: "bold", fontSize: "1.5rem" }}
-            >
-              {t(getTranslationID("topPage.text.maintenanceNotificationTitle"))}
-            </h4>
-            <br />
-            <p style={{ wordWrap: "break-word" }}>
-              {t(getTranslationID("topPage.text.maintenanceNotification"))}
-            </p>
-          </div>
         </section>
       </main>
       <Footer />