diff --git a/doc/source/conf.py b/doc/source/conf.py
index ee1b12f4..a20a635a 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -258,4 +258,4 @@
 
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {'http://docs.python.org/': None}
+intersphinx_mapping = {'python': ('https://docs.python.org/3', None)}