diff --git a/layouts/posts/single.html b/layouts/posts/single.html
index 7c1c92f..cebdd11 100644
--- a/layouts/posts/single.html
+++ b/layouts/posts/single.html
@@ -1,8 +1,8 @@
 {{ define "main" }}
 <article class="markdown book-post">
-  <h2>
+  <h1>
     {{ partial "docs/title.html" . }}
-  </h2>
+  </h1>
   {{ partial "docs/post-meta" . }}
   <div class="book-post-content">
     {{- .Content -}}