diff --git a/docs/source/conf.py b/docs/source/conf.py
index f112f59..5ee2603 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -166,5 +166,5 @@
 ]
 
 
-# Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {"https://docs.python.org/": None}
+# Configuration for intersphinx: refer to the Python standard library.
+intersphinx_mapping = {"python": ("https://docs.python.org/3", None)}
diff --git a/docs/source/requirements.txt b/docs/source/requirements.txt
index 89c732e..e69f482 100644
--- a/docs/source/requirements.txt
+++ b/docs/source/requirements.txt
@@ -1,3 +1,3 @@
-Sphinx>=1.5.3
+Sphinx<7.0.0
 sphinx-prompt>=1.0.0
 sphinx_rtd_theme