diff --git a/p/haskell-graphviz/debian/changelog b/p/haskell-graphviz/debian/changelog
index 42d733e176..3c41d81aaa 100644
--- a/p/haskell-graphviz/debian/changelog
+++ b/p/haskell-graphviz/debian/changelog
@@ -1,3 +1,12 @@
+haskell-graphviz (2999.20.1.0-2) UNRELEASED; urgency=medium
+
+ * Update watch file format version to 4.
+ * Set upstream metadata fields: Archive, Bug-Database, Bug-Submit, Repository,
+ Repository-Browse.
+ * Update standards version to 4.6.2, no changes needed.
+
+ -- Debian Janitor <janitor@jelmer.uk> Sun, 05 Mar 2023 15:37:32 -0000
+
haskell-graphviz (2999.20.1.0-1) unstable; urgency=medium
[ Ilias Tsitsimpis ]
diff --git a/p/haskell-graphviz/debian/control b/p/haskell-graphviz/debian/control
index 9a72ca797c..f39f6f8fd2 100644
--- a/p/haskell-graphviz/debian/control
+++ b/p/haskell-graphviz/debian/control
@@ -37,7 +37,7 @@ Build-Depends-Indep:
libghc-polyparse-doc,
libghc-temporary-doc,
libghc-wl-pprint-text-doc,
-Standards-Version: 4.6.1
+Standards-Version: 4.6.2
Homepage: https://github.com/ivan-m/graphviz
Vcs-Browser: https://salsa.debian.org/haskell-team/DHG_packages/tree/master/p/haskell-graphviz
Vcs-Git: https://salsa.debian.org/haskell-team/DHG_packages.git [p/haskell-graphviz]
diff --git a/p/haskell-graphviz/debian/upstream/metadata b/p/haskell-graphviz/debian/upstream/metadata
new file mode 100644
index 0000000000..35768e93d2
--- /dev/null
+++ b/p/haskell-graphviz/debian/upstream/metadata
@@ -0,0 +1,6 @@
+---
+Archive: Hackage
+Bug-Database: https://github.com/ivan-m/graphviz/issues
+Bug-Submit: https://github.com/ivan-m/graphviz/issues/new
+Repository: https://github.com/ivan-m/graphviz.git
+Repository-Browse: https://github.com/ivan-m/graphviz
diff --git a/p/haskell-graphviz/debian/watch b/p/haskell-graphviz/debian/watch
index 0a33539ba9..d13a20cfb1 100644
--- a/p/haskell-graphviz/debian/watch
+++ b/p/haskell-graphviz/debian/watch
@@ -1,2 +1,2 @@
-version=3
+version=4
https://hackage.haskell.org/package/graphviz/distro-monitor .*-([0-9\.]+)\.(?:zip|tgz|tbz|txz|(?:tar\.(?:gz|bz2|xz)))
