diff --git a/docs/source/conf.py b/docs/source/conf.py
index 369c185b..b039bc85 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -187,7 +187,7 @@
 intersphinx_mapping = {
     "numpy": ("http://docs.scipy.org/doc/numpy/", None),
     "scipy": ("http://docs.scipy.org/doc/scipy/reference/", None),
-    "matplotlib": ("http://matplotlib.sourceforge.net/", None),
+    "matplotlib": ("https://matplotlib.org/stable/", None),
 }
 
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