diff --git a/po/ja.po b/po/ja.po
index 3202cee9..aa9d1db1 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -13,8 +13,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: gnome-calendar main\n"
 "Report-Msgid-Bugs-To: https://gitlab.gnome.org/GNOME/gnome-calendar/issues\n"
-"POT-Creation-Date: 2025-10-11 18:55+0000\n"
-"PO-Revision-Date: 2025-10-12 05:25+0900\n"
+"POT-Creation-Date: 2025-10-21 14:25+0000\n"
+"PO-Revision-Date: 2025-10-22 08:50+0900\n"
 "Last-Translator: Makoto Sakaguchi <ycco34vx@gmail.com>\n"
 "Language-Team: Japanese <https://l10n.gnome.org/teams/ja/>\n"
 "Language: ja\n"
@@ -22,7 +22,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
-"X-Generator: Poedit 3.7\n"
+"X-Generator: Poedit 3.8\n"
 
 #: data/org.gnome.Calendar.desktop.in.in:2
 #: src/appdata/org.gnome.Calendar.metainfo.xml.in.in:13
@@ -542,15 +542,15 @@ msgstr "イベントを削除(_D)"
 msgid "_Save"
 msgstr "保存(_S)"
 
-#: src/gui/event-editor/gcal-event-editor-dialog.c:688
+#: src/gui/event-editor/gcal-event-editor-dialog.c:669
 msgid "New Event"
 msgstr "新しいイベント"
 
-#: src/gui/event-editor/gcal-event-editor-dialog.c:690
+#: src/gui/event-editor/gcal-event-editor-dialog.c:671
 msgid "Event Details"
 msgstr "イベントの詳細"
 
-#: src/gui/event-editor/gcal-event-editor-dialog.c:692
+#: src/gui/event-editor/gcal-event-editor-dialog.c:673
 msgid "Edit Event"
 msgstr "イベントを編集"
 
@@ -1528,12 +1528,20 @@ msgstr "進行中"
 msgid "New Event…"
 msgstr "新しいイベント…"
 
-#: src/gui/views/gcal-week-header.c:480
+#: src/gui/views/gcal-week-header.c:479
 #, c-format
 msgid "Other event"
 msgid_plural "Other %d events"
 msgstr[0] "その他%d個のイベント"
 
+#: src/gui/views/gcal-week-view.c:241
+msgid "Hide Additional Events"
+msgstr "追加のイベントを非表示"
+
+#: src/gui/views/gcal-week-view.c:243
+msgid "Show Additional Events"
+msgstr "追加のイベントを表示"
+
 #: src/utils/gcal-utils.c:1123
 msgid "Modify Multiple Events?"
 msgstr "複数のイベントを変更しますか?"