diff --git a/config.yaml b/config.yaml
index 7f68888..117da0c 100644
--- a/config.yaml
+++ b/config.yaml
@@ -92,4 +92,4 @@ profiles:
 # sandpaper and varnish versions) should live
 
 varnish: RSE-Sheffield/uos-varnish@main
-url: 'rse.shef.ac.uk/pando-python'
+url: 'https://rse.shef.ac.uk/pando-python'
diff --git a/md5sum.txt b/md5sum.txt
index 4394336..60299df 100644
--- a/md5sum.txt
+++ b/md5sum.txt
@@ -1,7 +1,7 @@
 "file" "checksum" "built" "date"
 "CODE_OF_CONDUCT.md" "c93c83c630db2fe2462240bf72552548" "site/built/CODE_OF_CONDUCT.md" "2024-03-20"
 "LICENSE.md" "b24ebbb41b14ca25cf6b8216dda83e5f" "site/built/LICENSE.md" "2024-03-20"
-"config.yaml" "4956c94bc3502f60289457a6f9a5adfb" "site/built/config.yaml" "2024-09-20"
+"config.yaml" "df6ccd6f3628672a1b811dff2b040f18" "site/built/config.yaml" "2024-09-20"
 "index.md" "eb53681be899ddb050f0e5126cbbd566" "site/built/index.md" "2024-04-08"
 "links.md" "8184cf4149eafbf03ce8da8ff0778c14" "site/built/links.md" "2024-03-20"
 "episodes/profiling-introduction.md" "e3678e7f2f3ea9bd44e7fc0604cc650b" "site/built/profiling-introduction.md" "2024-03-28"