diff --git a/docs/index.rst b/docs/index.rst
index 9da5e47..55910b3 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -41,7 +41,7 @@ License: `GPL v.3`_
 
 .. toctree::
     :caption: Contents:
-    :maxdepth: 4
+    :maxdepth: 2
 
     using
     modules