diff --git a/doc/rst/source/reference/supplemental-packages.rst b/doc/rst/source/reference/supplemental-packages.rst
index f0365301278..105655bc342 100644
--- a/doc/rst/source/reference/supplemental-packages.rst
+++ b/doc/rst/source/reference/supplemental-packages.rst
@@ -185,7 +185,7 @@ Footnotes
    three-dimensional bodies of arbitrary shape, *Geophysics, 25*, 203–225.
 
 .. [28]
-   `Timothy J. Henstock <http://www.southampton.ac.uk/oes/research/staff/then.page>`_,
+   `Timothy J. Henstock <https://www.southampton.ac.uk/people/5wy8gd/professor-tim-henstock>`_,
    University of Southampton
 
 .. [29]
diff --git a/doc/rst/source/solar.rst b/doc/rst/source/solar.rst
index d384363ae6f..46904317ece 100644
--- a/doc/rst/source/solar.rst
+++ b/doc/rst/source/solar.rst
@@ -183,7 +183,7 @@ Set up a clip path overlay based on the day/night terminator::
 References
 ----------
 
-Code from the Excel Spreadsheets in http://www.esrl.noaa.gov/gmd/grad/solcalc/calcdetails.html
+Code from the Excel Spreadsheets in https://gml.noaa.gov/grad/solcalc/calcdetails.html.
 
 Notes
 -----