diff --git a/debian/changelog b/debian/changelog
index b5a22c4..5552b95 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -5,6 +5,9 @@
     autopkgtest instead. This should fix build failure on hurd-i386.
 
   * Cherry-pick upstream fix for makeinfo reading from - (stdin).
+
+  [ Debian Janitor ]
+  * Use secure URI in debian/watch.
 
  -- Norbert Preining <norbert@preining.info>  Wed, 07 Jul 2021 04:46:45 +0900
 
diff --git a/debian/watch b/debian/watch
index 1a4740a..3b2d501 100644
--- a/debian/watch
+++ b/debian/watch
@@ -1,3 +1,3 @@
 # watch control file for uscan
 version=4
-opts="pgpsigurlmangle=s%$%.sig%, dversionmangle=s/\.dfsg\.\d+$//" http://ftp.gnu.org/gnu/texinfo/texinfo-(.*)\.tar\.xz
+opts="pgpsigurlmangle=s%$%.sig%, dversionmangle=s/\.dfsg\.\d+$//" https://ftp.gnu.org/gnu/texinfo/texinfo-(.*)\.tar\.xz