diff --git a/doc/conf.py b/doc/conf.py
index 44b8478994de..bcb6d93a51b4 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -135,6 +135,7 @@ def _check_dependencies():
     'backreferences_dir': 'api/_as_gen',
     'subsection_order': gallery_order.sectionorder,
     'within_subsection_order': gallery_order.subsectionorder,
+    'remove_config_comments': True,
     'min_reported_time': 1,
 }
 
diff --git a/requirements/doc/doc-requirements.txt b/requirements/doc/doc-requirements.txt
index 362399aeac7b..c7cc54885ea0 100644
--- a/requirements/doc/doc-requirements.txt
+++ b/requirements/doc/doc-requirements.txt
@@ -12,5 +12,5 @@ colorspacious
 ipython
 ipywidgets
 numpydoc>=0.8
-sphinx-gallery>=0.2
+sphinx-gallery>=0.4
 sphinx-copybutton