@@ -171,14 +171,14 @@
 
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {
-    'pandas': ('http://pandas.pydata.org/pandas-docs/stable/', None),
-    'numpy': ('http://docs.scipy.org/doc/numpy/', None),
-    'matplotlib': ('http://matplotlib.org/', None),
-    'sphinx': ('http://sphinx-doc.org/', None),
+    'pandas': ('https://pandas.pydata.org/pandas-docs/stable/', None),
+    'numpy': ('https://docs.scipy.org/doc/numpy/', None),
+    'matplotlib': ('https://matplotlib.org/', None),
+    'sphinx': ('http://www.sphinx-doc.org/en/master/', None),
     'xarray': ('http://xarray.pydata.org/en/stable/', None),
-    'cartopy': ('http://scitools.org.uk/cartopy/docs/latest/', None),
-    'mpl_toolkits': ('http://matplotlib.org/basemap/', None),
-    'psyplot': ('http://psyplot.readthedocs.org/en/latest/', None)
+    'cartopy': ('https://scitools.org.uk/cartopy/docs/latest/', None),
+    'mpl_toolkits': ('https://matplotlib.org/basemap/', None),
+    'psyplot': ('https://psyplot.readthedocs.io/en/latest/', None)
 }
 if six.PY3:
     intersphinx_mapping['python'] = ('https://docs.python.org/3.4/', None)