diff --git a/doc/conf.py b/doc/conf.py
index 3cc298ea95..539233f2b8 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -263,8 +263,11 @@
 
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {
-    'http://docs.python.org/': None,
-    'https://docs.djangoproject.com/en/3.2': 'https://docs.djangoproject.com/en/3.2/_objects',
+    'python': ('https://docs.python.org/3', None),
+    'django': (
+        'https://docs.djangoproject.com/en/3.2',
+        'https://docs.djangoproject.com/en/3.2/_objects',
+    ),
 }
 
 
diff --git a/requirements/base.txt b/requirements/base.txt
index 1817047d29..87041f9f77 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -12,7 +12,7 @@ twisted>=20.0.0,<21
 networkx==2.6.3
 Pillow>3.3.2
 pyrad==2.1
-sphinx==4.4.0
+sphinx==5.3.0
 sphinxcontrib-programoutput==0.17
 sphinxcontrib-django
 # Needed for autogenerated docs