diff --git a/CHANGES.rst b/CHANGES.rst
index c684feb..e129591 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -7,6 +7,8 @@ Changes in sphinx-astropy
 - Removed dependency on ``distutils``. As a result, ``packaging`` is now
   a dependency. [#51]
 
+- Updated ``matplotlib`` URL for intersphinx. [#52]
+
 1.6 (2021-09-22)
 ----------------
 
diff --git a/sphinx_astropy/conf/v1.py b/sphinx_astropy/conf/v1.py
index 5bbbce4..806cf0c 100644
--- a/sphinx_astropy/conf/v1.py
+++ b/sphinx_astropy/conf/v1.py
@@ -61,7 +61,7 @@ def check_sphinx_version(expected_version):
               (None, 'http://data.astropy.org/intersphinx/numpy.inv')),
     'scipy': ('https://docs.scipy.org/doc/scipy/reference/',
               (None, 'http://data.astropy.org/intersphinx/scipy.inv')),
-    'matplotlib': ('https://matplotlib.org/',
+    'matplotlib': ('https://matplotlib.org/stable/',
                    (None, 'http://data.astropy.org/intersphinx/matplotlib.inv')),
     'astropy': ('https://docs.astropy.org/en/stable/', None),
     'h5py': ('https://docs.h5py.org/en/stable/', None)}