diff --git a/doc/api.rst b/doc/api.rst
index 084984df..366a2192 100644
--- a/doc/api.rst
+++ b/doc/api.rst
@@ -17,21 +17,21 @@ exasol.bucketfs.Bucket
    :show-inheritance:
 
 exasol.bucketfs.SaaSBucket
------------------------
+--------------------------
 .. autoclass:: exasol.bucketfs.Bucket
    :members:
    :undoc-members:
    :show-inheritance:
 
 exasol.bucketfs.path.PathLike
------------------------
+-----------------------------
 .. autoclass:: exasol.bucketfs.path.PathLike
    :members:
    :undoc-members:
    :show-inheritance:
 
 exasol.bucketfs.path.build_path
-------------------------
+-------------------------------
 .. autofunction:: exasol.bucketfs.path.build_path
 
 exasol.bucketfs.as_bytes
diff --git a/doc/user_guide/basics.rst b/doc/user_guide/basics.rst
index aad22a0e..95327ca0 100644
--- a/doc/user_guide/basics.rst
+++ b/doc/user_guide/basics.rst
@@ -23,7 +23,7 @@ Get a Bucket reference
 
 
 Bucket class
--------------
+------------
 A Bucket contains a set of files which may be restricted, depending on the credentials of the requester.
 The Bucket class for an On-Prem database is :ref:`exasol.bucketfs.Bucket <api:exasol.bucketfs.Bucket>`.
 The correspondent class for a SaaS database is :ref:`exasol.bucketfs.Bucket <api:exasol.bucketfs.SaaSBucket>`.
@@ -80,17 +80,17 @@ Delete files from Bucket
    :end-before: # Expert/Mapped bucket API
 
 Create bucket object in SaaS
-++++++++++++++++++++++++
+++++++++++++++++++++++++++++
 
 .. literalinclude:: /examples/bucket_saas.py
    :language: python3
 
 PathLike interface
--------------
+------------------
 A PathLike is an interface similar to the pathlib.Path and should feel familiar to most users.
 
 Using the PathLike interface
-++++++++++++++++++++++++
+++++++++++++++++++++++++++++
 
 .. literalinclude:: /examples/path_like.py
    :language: python3