diff --git a/flaskr/blog.py b/flaskr/blog.py
index 9ae4adaf..d086da6b 100644
--- a/flaskr/blog.py
+++ b/flaskr/blog.py
@@ -24,8 +24,9 @@ def index():
         " ORDER BY created DESC"
     ).fetchall()
     # Convert markdown to HTML for each post body
-    for post in posts:
-        post['body'] = markdown.markdown(post['body'])
+    posts = [
+        {**post, 'body': markdown.markdown(post['body'])} for post in posts
+    ]
     return render_template("blog/index.html", posts=posts)