diff --git a/app/views/pages/_form.html.slim b/app/views/pages/_form.html.slim
index 089033f7904..b665396a277 100644
--- a/app/views/pages/_form.html.slim
+++ b/app/views/pages/_form.html.slim
@@ -75,10 +75,9 @@
                 i.fa-solid.fa-question
 
         = button_tag(class: 'a-button is-lg is-primary is-block') do
-          - case params[:action]
-          - when 'new', 'create'
+          - if page.published_at.blank?
             | Docを公開
-          - when 'edit', 'update'
+          - else
             | 内容を更新
       li.form-actions__item.is-sub
         - case params[:action]
diff --git a/test/system/notification/pages_test.rb b/test/system/notification/pages_test.rb
index 35ea8e6c774..2c66f51fd62 100644
--- a/test/system/notification/pages_test.rb
+++ b/test/system/notification/pages_test.rb
@@ -65,7 +65,7 @@ class Notification::PagesTest < ApplicationSystemTestCase
     visit_with_auth page_path(page), 'komagata'
 
     click_link '内容変更'
-    click_button '内容を更新'
+    click_button 'Docを公開'
     assert_text 'ドキュメントを更新しました。'
 
     visit_with_auth '/notifications', 'machida'
diff --git a/test/system/pages_test.rb b/test/system/pages_test.rb
index 25679f23731..1478a628a6a 100644
--- a/test/system/pages_test.rb
+++ b/test/system/pages_test.rb
@@ -224,7 +224,7 @@ class PagesTest < ApplicationSystemTestCase
     stub_info = proc { |i| mock_log << i }
 
     Rails.logger.stub(:info, stub_info) do
-      click_button '内容を更新'
+      click_button 'Docを公開'
     end
 
     assert_text 'ドキュメントを更新しました。'
@@ -312,7 +312,7 @@ class PagesTest < ApplicationSystemTestCase
     click_button 'WIP'
 
     check 'ドキュメント公開のお知らせを書く', allow_label_click: true
-    click_button '内容を更新'
+    click_button 'Docを公開'
 
     assert_text 'ドキュメントを更新しました。'
     assert has_field?('announcement[title]', with: 'ドキュメント「お知らせにチェックを入れてWIP状態から新規Docを作成」を公開しました。')