diff --git a/app/controllers/admin/people_controller.rb b/app/controllers/admin/people_controller.rb
index 5678d7fbe6d..2907662432b 100644
--- a/app/controllers/admin/people_controller.rb
+++ b/app/controllers/admin/people_controller.rb
@@ -26,6 +26,11 @@ def edit; end
 
   def update
     if @person.update(person_params)
+      if @person.current_or_previous_prime_minister?
+        @person.historical_account.republish_to_publishing_api_async if @person.historical_account.present?
+        PresentPageToPublishingApiWorker.perform_async("PublishingApi::HistoricalAccountsIndexPresenter")
+      end
+
       redirect_to [:admin, @person], notice: %("#{@person.name}" saved.)
     else
       render :edit
diff --git a/test/functional/admin/people_controller_test.rb b/test/functional/admin/people_controller_test.rb
index c27f70d6763..8898937c6b9 100644
--- a/test/functional/admin/people_controller_test.rb
+++ b/test/functional/admin/people_controller_test.rb
@@ -150,6 +150,51 @@ class Admin::PeopleControllerTest < ActionController::TestCase
     assert_equal "960x640_jpeg.jpg", person.reload.image.filename
   end
 
+  test "PUT :update does not republish the past prime ministers page if the person has not been the prime minister" do
+    person = create(:person)
+
+    PresentPageToPublishingApi
+    .expects(:new)
+    .never
+
+    Sidekiq::Testing.inline! do
+      put :update, params: {
+        id: person.id,
+        person: attributes_for(:person),
+      }
+    end
+  end
+
+  test "PUT :update republishes the past prime ministers page & the persons historical account if the person is or has been the prime minister" do
+    login_as :gds_admin
+    historical_account = build(:historical_account)
+    person = create(:pm, historical_account:)
+
+    service = mock
+
+    PresentPageToPublishingApi
+    .expects(:new)
+    .once
+    .returns(service)
+
+    service
+    .expects(:publish)
+    .once
+    .with(PublishingApi::HistoricalAccountsIndexPresenter)
+
+    HistoricalAccount
+    .any_instance
+    .expects(:republish_to_publishing_api_async)
+    .once
+
+    Sidekiq::Testing.inline! do
+      put :update, params: {
+        id: person.id,
+        person: attributes_for(:person),
+      }
+    end
+  end
+
   test "should be able to destroy a destroyable person" do
     person = create(:person, forename: "Dave")
     delete :destroy, params: { id: person.id }