diff --git a/docs/source/index.rst b/docs/source/index.rst
index 1dcb286..9a054a8 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -7,7 +7,7 @@ Right now, this page just documents the basic Python API of the library, but the
 
 .. toctree::
    :caption: API Reference
-   :maxdepth: 1
+   :maxdepth: 2
    :name: sec-api
 
    modules/index