diff --git a/main.cr b/main.cr
index 43cce28..e80d42c 100644
--- a/main.cr
+++ b/main.cr
@@ -96,7 +96,7 @@ class PostRepository
   end
 
   def all : Array(Post)
-    posts = Dir.glob("#{@config.content_dir}/*.md").map do |file|
+    posts = Dir.glob("#{@config.content_dir}/*.md").sort.map do |file|
       Post.new(file)
     end
     posts.reverse