diff --git a/debian/compat b/debian/compat
index b4de394..b1bd38b 100644
--- a/debian/compat
+++ b/debian/compat
@@ -1 +1 @@
-11
+13
diff --git a/debian/control b/debian/control
index 285ab08..be1d153 100644
--- a/debian/control
+++ b/debian/control
@@ -1,13 +1,13 @@
Source: vlfeat
Section: science
Priority: optional
-Build-Depends: debhelper (>= 11), dh-exec, octave-dev, dh-octave,
+Build-Depends: debhelper (>= 13~), dh-exec, octave-dev, dh-octave,
transfig, ghostscript, librsvg2-bin, texlive-latex-base, imagemagick,
python3, python3-pygments, doxygen, rsync, groff
Maintainer: Debian Science Maintainers <debian-science-maintainers@lists.alioth.debian.org>
Uploaders: Dima Kogan <dkogan@debian.org>
Standards-Version: 4.1.3
-Homepage: http://www.vlfeat.org
+Homepage: https://www.vlfeat.org
Vcs-Git: https://salsa.debian.org/science-team/vlfeat.git
Vcs-Browser: https://salsa.debian.org/science-team/vlfeat
diff --git a/debian/copyright b/debian/copyright
index a560522..aa13f8d 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -1,4 +1,4 @@
-Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Source: http://www.vlfeat.org
Upstream-Contact: Andrea Vedaldi, <vedaldi@robots.ox.ac.uk>
Upstream-Name: VLFeat
diff --git a/debian/upstream/metadata b/debian/upstream/metadata
new file mode 100644
index 0000000..dd022d5
--- /dev/null
+++ b/debian/upstream/metadata
@@ -0,0 +1,4 @@
+---
+Bug-Database: https://github.com/vlfeat/vlfeat/issues
+Bug-Submit: https://github.com/vlfeat/vlfeat/issues/new
+Repository-Browse: https://github.com/vlfeat/vlfeat
