diff --git a/_config.yml b/_config.yml
index dd24f14..a320a27 100644
--- a/_config.yml
+++ b/_config.yml
@@ -23,7 +23,7 @@ kramdown:
   auto_ids: true
   footnote_nr: 1
   entity_output: as_char
-  toc_levels: 1..6
+  toc_levels: 1..2
   use_coderay: false
 
 include: [".htaccess"]