diff --git a/docs/README.rst b/docs/README.rst
index beb6127..2fac651 100644
--- a/docs/README.rst
+++ b/docs/README.rst
@@ -17,6 +17,7 @@ apt
 A formula to configure and manage update, upgrade, and dist-upgrade within apt.
 
 .. contents:: **Table of Contents**
+   :depth: 1
 
 General notes
 -------------