diff --git a/debian/changelog b/debian/changelog
index e9a0f89..8257ddb 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,14 @@
+stylish-haskell (0.12.2.0-2) UNRELEASED; urgency=medium
+
+ * Use secure copyright file specification URI.
+ * Bump debhelper from old 10 to 13.
+ * Set debhelper-compat version in Build-Depends.
+ * Update renamed lintian tag names in lintian overrides.
+ * Set upstream metadata fields: Bug-Database, Bug-Submit, Repository,
+ Repository-Browse.
+
+ -- Debian Janitor <janitor@jelmer.uk> Sat, 12 Aug 2023 12:42:21 -0000
+
stylish-haskell (0.12.2.0-1) unstable; urgency=medium
* New upstream release.
diff --git a/debian/compat b/debian/compat
deleted file mode 100644
index f599e28..0000000
--- a/debian/compat
+++ /dev/null
@@ -1 +0,0 @@
-10
diff --git a/debian/control b/debian/control
index c740568..73c3a8b 100644
--- a/debian/control
+++ b/debian/control
@@ -2,7 +2,7 @@ Source: stylish-haskell
Maintainer: Sean Whitton <spwhitton@spwhitton.name>
Priority: optional
Section: haskell
-Build-Depends: debhelper (>= 10),
+Build-Depends: debhelper-compat (= 13),
ghc,
libghc-aeson-dev (>= 0.6),
libghc-aeson-dev (<< 1.6),
diff --git a/debian/copyright b/debian/copyright
index 72ba46c..339dab6 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/
Upstream-Name: stylish-haskell
Upstream-Contact: Jasper Van der Jeugt <m@jaspervdj.be>
Source: https://github.com/jaspervdj/stylish-haskell
diff --git a/debian/source/lintian-overrides b/debian/source/lintian-overrides
index 12bfc41..a11fdbc 100644
--- a/debian/source/lintian-overrides
+++ b/debian/source/lintian-overrides
@@ -1,2 +1,2 @@
# signatures not provided & watch file just for notification of existence of new versions
-debian-watch-may-check-gpg-signature
+debian-watch-does-not-check-openpgp-signature
diff --git a/debian/upstream/metadata b/debian/upstream/metadata
new file mode 100644
index 0000000..9fc3e85
--- /dev/null
+++ b/debian/upstream/metadata
@@ -0,0 +1,5 @@
+---
+Bug-Database: https://github.com/haskell/stylish-haskell/issues
+Bug-Submit: https://github.com/haskell/stylish-haskell/issues/new
+Repository: https://github.com/haskell/stylish-haskell.git
+Repository-Browse: https://github.com/haskell/stylish-haskell
