diff --git a/app/views/admin/news/_form.html.erb b/app/views/admin/news/_form.html.erb
index 0cee21f..99c92ab 100644
--- a/app/views/admin/news/_form.html.erb
+++ b/app/views/admin/news/_form.html.erb
@@ -127,7 +127,7 @@
               <% if @news_bulletin.image.file %>
                 <%= image_tag @news_bulletin.image %>
               <% else %>
-                <img src="http://www.placehold.it/200x100/EFEFEF/AAAAAA" />
+                <img src="http://www.placehold.it/400x200/EFEFEF/AAAAAA" />
               <% end %>
             </div>
             <div class="fileupload-preview fileupload-exists thumbnail pull-left"></div>
@@ -147,7 +147,7 @@
           <div class="fileupload-alert alert alert-danger text-center" role="alert"></div>
           <div class="image_note" style="color:red; font-size:14px;">
             <br />
-            ※<%= t("ad.widget_info_for_ad_image_size", :best_size=> "( 200px x 100px )") %>
+            ※<%= t("ad.widget_info_for_ad_image_size", :best_size=> "( 400px x 200px )") %>
             <br />
             ※<%= t("news.image_size_limit")%>
             <br />