diff --git a/_layouts/default.html b/_layouts/default.html
index 49545450735..191399fb87c 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -5,7 +5,7 @@
 
 {% seo %}
 <meta property="og:image" content="{{ site.url }}/assets/aider.jpg">
-<meta property="twitter:image" content="{{ site.url }}/assets/aider.jpg">
+<meta property="twitter:image" content="{{ site.url }}/assets/aider-square.jpg">
     <link rel="preconnect" href="https://fonts.gstatic.com">
     <link rel="preload" href="https://fonts.googleapis.com/css?family=Open+Sans:400,700&display=swap" as="style" type="text/css" crossorigin>
     <meta name="viewport" content="width=device-width, initial-scale=1">
diff --git a/assets/aider-square.jpg b/assets/aider-square.jpg
new file mode 100644
index 00000000000..b4701eec0a5
Binary files /dev/null and b/assets/aider-square.jpg differ