diff --git a/src/theme/head.hbs b/src/theme/head.hbs
index 6ea29c0..ee7db86 100644
--- a/src/theme/head.hbs
+++ b/src/theme/head.hbs
@@ -4,9 +4,9 @@
 <meta property="og:description" content="{{chapter_title}} - Güvenlik Rehberi" />
 <meta property="og:image" content="/oyd_social.png?v=2" />
 <meta property="og:site_name" content="Özgür Yazılım Derneği Güvenlik Rehberi" />
-<meta name="twitter:card" content="summary_image" />
+<meta name="twitter:card" content="summary" />
 <meta name="twitter:site" content="@oydorgtr" />
 <meta name="twitter:title" content="{{chapter_title}} - Özgür Yazılım Derneği Güvenlik Rehberi">
 <meta name="twitter:description" content="{{chapter_title}} - Güvenlik Rehberi">
 <meta name="twitter:creator" content="@oydorgtr" />
-<meta name="twitter:image" content="https://oyd.org.tr/oyd_social.png?48123">
\ No newline at end of file
+<meta name="twitter:image" content="https://oyd.org.tr/oyd_social.png?48123">