diff --git a/FactoryTest/FactoryTest.ino b/FactoryTest/FactoryTest.ino
index a5c5b7d..98d425f 100644
--- a/FactoryTest/FactoryTest.ino
+++ b/FactoryTest/FactoryTest.ino
@@ -164,7 +164,7 @@
         M5.delay(1000);
         M5.Display.setBrightness(i);
     }
-    esp_sleep_enable_timer_wakeup(7 * 86400 * 1000000ULL); // 1週間後に復帰
+    esp_sleep_enable_timer_wakeup(12 * 31 * 86400 * 1000000ULL); // 1週間後に復帰
     esp_deep_sleep_start();
 }