diff --git a/src/pydata_sphinx_theme/locale/ja/LC_MESSAGES/sphinx.po b/src/pydata_sphinx_theme/locale/ja/LC_MESSAGES/sphinx.po
index 64c683ca3..2a46d51d1 100644
--- a/src/pydata_sphinx_theme/locale/ja/LC_MESSAGES/sphinx.po
+++ b/src/pydata_sphinx_theme/locale/ja/LC_MESSAGES/sphinx.po
@@ -1,33 +1,37 @@
-# English translations for pydata-sphinx-theme.
-# Copyright (C) 2023 PyData developers
-# This file is distributed under the same license as the pydata-sphinx-theme
-# project.
+# English translations for PROJECT.
+# Copyright (C) 2024 ORGANIZATION
+# This file is distributed under the same license as the PROJECT project.
+# FIRST AUTHOR <EMAIL@ADDRESS>, 2024.
 # 
 # Translators:
 # Tetsuo Koyama <tkoyama010@gmail.com>, 2024
 # 
 msgid ""
 msgstr ""
+"Last-Translator: Tetsuo Koyama <tkoyama010@gmail.com>, 2024\n"
+"Language-Team: Japanese (https://app.transifex.com/12rambau/teams/166811/ja/)\n"
+"Language: ja\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
 
-#: docs/conf.py:94
+#: docs/conf.py:108
 msgid "Click to expand"
 msgstr "クリックして拡大"
 
-#: docs/conf.py:95
+#: docs/conf.py:109
 msgid "Click to collapse"
 msgstr "クリックして折りたたむ"
 
-#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/layout.html:39
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/layout.html:48
 msgid "Skip to main content"
 msgstr "本文へスキップ"
 
-#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/layout.html:51
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/layout.html:60
 msgid "Back to top"
 msgstr "トップに戻る"
 
-#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/search-button-field.html:5
-#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/search-button-field.html:7
-#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/search-button.html:5
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/search-button-field.html:6
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/search-button-field.html:8
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/search-button.html:3
 #: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/search.html:5
 #: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/search.html:28
 msgid "Search"
@@ -41,18 +45,18 @@ msgstr "エラー"
 msgid "Please activate JavaScript to enable the search functionality."
 msgstr "検索機能を有効にするにはJavaScriptを有効にしてください。"
 
-#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/breadcrumbs.html:13
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/breadcrumbs.html:6
 msgid "Breadcrumb"
 msgstr "パンくずリスト"
 
-#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/breadcrumbs.html:17
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/breadcrumbs.html:10
 msgid "Home"
 msgstr "ホーム"
 
 #: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/copyright.html:5
 #, python-format
-msgid "© <a href=\"%(path)s\">Copyright</a> %(copyright)s."
-msgstr "© <a href=\"%(path)s\">Copyright</a> %(copyright)s."
+msgid "Copyright %(copyright)s"
+msgstr "版権 %(copyright)s"
 
 #: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/copyright.html:8
 #, python-format
@@ -128,7 +132,7 @@ msgstr ""
 "<a href=\"https://www.sphinx-doc.org/\">Sphinx</a> %(sphinx_version)s "
 "を使用して作成されました。"
 
-#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/theme-switcher.html:5
+#: src/pydata_sphinx_theme/theme/pydata_sphinx_theme/components/theme-switcher.html:3
 msgid "light/dark"
 msgstr "ライト/ダーク"
 
@@ -172,3 +176,6 @@ msgstr "サイトナビゲーション"
 
 #~ msgid "Site Navigation"
 #~ msgstr "サイトナビゲーション"
+
+#~ msgid "© <a href=\"%(path)s\">Copyright</a> %(copyright)s."
+#~ msgstr "© <a href=\"%(path)s\">Copyright</a> %(copyright)s."