--- a/doc/developers.txt	Fri Feb 08 19:39:17 2019 -0500
+++ b/doc/developers.txt	Tue Feb 12 21:31:41 2019 -0500
@@ -23,7 +23,7 @@
 - roundup-devel mailing list at
   http://lists.sourceforge.net/mailman/listinfo/roundup-devel
 - The issue tracker running at
-  http://issues.roundup-tracker.org/
+  https://issues.roundup-tracker.org/
 
 Website, wiki
 -------------
@@ -48,7 +48,7 @@
 tracker is http://psf.upfronthosting.co.za/roundup/meta/
 In this tracker, Upfronthosting people are the users izak and roche.
 
-The Roundup tracker http://issues.roundup-tracker.org/ is in
+The Roundup tracker https://issues.roundup-tracker.org/ is in
 ~roundup/trackers/roundup
 
 The configuration is in the "website/issues" section of Roundup's
@@ -423,7 +423,7 @@
 .. _gettext module: https://docs.python.org/2/library/gettext.html
 .. _GNU: http://www.gnu.org/
 .. _GNU mirror sites: http://www.gnu.org/prep/ftp.html
-.. _issue tracker: http://issues.roundup-tracker.org/
+.. _issue tracker: https://issues.roundup-tracker.org/
 .. _Lokalize: Lokalize
 .. _KDE: http://www.kde.org/
 .. _linux: https://www.linux.org/