diff --git a/docs/specs/spec-meta-deposit.rst b/docs/specs/spec-meta-deposit.rst
--- a/docs/specs/spec-meta-deposit.rst
+++ b/docs/specs/spec-meta-deposit.rst
@@ -1,8 +1,8 @@
 The metadata-deposit
-====================
+^^^^^^^^^^^^^^^^^^^^
 
 Goal
-----
+====
 
 A client wishes to deposit only metadata about an origin or object already
 present in the Software Heritage archive.
@@ -12,7 +12,7 @@
 the metadata about an object in the archive.
 
 Requirements
-------------
+============
 
 1. Create a metadata-only deposit through a :ref:`POST request<API-create-deposit>`
 2. It is composed of ONLY one xml metadata file
@@ -33,7 +33,7 @@
 .. _qualifiers: https://docs.softwareheritage.org/devel/swh-model/persistent-identifiers.html#qualifiers
 
 A complete metadata example
----------------------------
+===========================
 The reference element is included in the metadata xml atomEntry under the
 swh namespace:
 
@@ -70,14 +70,14 @@
   </entry>
 
 References
-^^^^^^^^^^
+==========
 
 The metadata reference can be either on:
 - an origin
 - a graph object (core SWHID with or without qualifiers)
 
 Origins
-=======
+-------
 
 The metadata may be on an origin, identified by the origin's URL:
 
@@ -90,7 +90,7 @@
   </swh:deposit>
 
 Graph objects
-=============
+-------------
 
 It may also reference an object in the `SWH graph <data-model>`: contents,
 directories, revisions, releases, and snapshots:
@@ -127,7 +127,7 @@
 
 
 Loading procedure
-------------------
+=================
 
 In this case, the metadata-deposit will be injected as a metadata entry of
 the relevant object, with the information about the contributor of the deposit.