diff --git a/_config.yml b/_config.yml
index 15de3c4..3082930 100644
--- a/_config.yml
+++ b/_config.yml
@@ -59,6 +59,8 @@ plugins:
 atom_feed:
   hide: true
 
+og_image: "assets/images/og_image.jpg"
+
 stay_on_top_categories:
   - 初めての方へ
   - a
diff --git a/assets/images/og_image.jpg b/assets/images/og_image.jpg
new file mode 100644
index 0000000..02b362e
Binary files /dev/null and b/assets/images/og_image.jpg differ