diff --git a/_config.yml b/_config.yml
index bbaf11e..66ee53d 100644
--- a/_config.yml
+++ b/_config.yml
@@ -81,7 +81,7 @@ avatar: /edu4rdshl.jpeg
 
 # The URL of the site-wide social preview image used in SEO `og:image` meta tag.
 # It can be overridden by a customized `page.image` in front matter.
-social_preview_image: # string, local or CORS resources
+social_preview_image: social_preview.jpeg # string, local or CORS resources
 
 # boolean type, the global switch for TOC in posts.
 toc: true
diff --git a/_imgs/social_preview.jpeg b/_imgs/social_preview.jpeg
new file mode 100644
index 0000000..4a62052
Binary files /dev/null and b/_imgs/social_preview.jpeg differ