diff --git a/_includes/head.html b/_includes/head.html
index ce5cb7b..a50a8a1 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -26,8 +26,8 @@
   <meta name="twitter:image" content="{{ site.url }}{{ page.thumbnail }}" />
   <meta property="og:image"  content="{{ site.url }}{{ page.thumbnail }}" />
   {% else %}
-  <meta name="twitter:image" content="{{ site.url }}/img/{{ site.year }}/ogp/1200x630_03_date.jpg" />
-  <meta property="og:image"  content="{{ site.url }}/img/{{ site.year }}/ogp/1200x630_03_date.jpg" />
+  <meta name="twitter:image" content="{{ site.url }}/img/{{ site.year }}/ogp/ogp.jpg" />
+  <meta property="og:image"  content="{{ site.url }}/img/{{ site.year }}/ogp/ogp.jpg" />
   {% endif %}
 
   {% if page.url != "/" %}
diff --git a/img/2024/ogp/default.jpg b/img/2024/ogp/ogp.jpg
similarity index 100%
rename from img/2024/ogp/default.jpg
rename to img/2024/ogp/ogp.jpg
diff --git a/index.md b/index.md
index b2973c2..adb41e8 100644
--- a/index.md
+++ b/index.md
@@ -5,7 +5,7 @@ layout: default
  <div class="container-fluid px-lg-5">
     <div class="row align-items-end top-information">
       <div class="col">
-        <p class="top-information_date">2024.09.15 OKAYMA</p>
+        <p class="top-information_date">2024.09.15 OKAYAMA</p>
         <p class="top-information_leadcopy">CoderDojoコミュニティのカンファレンスイベント</p>
         <div class="top-information_description">
           <p>DojoCon Japanとは日本の CoderDojo コミュニティメンバーが全国から集まる、年に1度のカンファレンスイベント(CoderDojo Conference) です。</p>