diff --git a/debian/changelog b/debian/changelog
index 5b67d05..2e0202f 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+ppx-deriving (5.2.1-4) UNRELEASED; urgency=medium
+
+ * Set upstream metadata fields: Bug-Database, Bug-Submit, Repository,
+ Repository-Browse.
+
+ -- Debian Janitor <janitor@jelmer.uk> Thu, 06 Jul 2023 21:48:08 -0000
+
ppx-deriving (5.2.1-3) unstable; urgency=medium
* Team upload.
diff --git a/debian/upstream/metadata b/debian/upstream/metadata
new file mode 100644
index 0000000..3c71d2d
--- /dev/null
+++ b/debian/upstream/metadata
@@ -0,0 +1,5 @@
+---
+Bug-Database: https://github.com/ocaml-ppx/ppx_deriving/issues
+Bug-Submit: https://github.com/ocaml-ppx/ppx_deriving/issues/new
+Repository: https://github.com/ocaml-ppx/ppx_deriving.git
+Repository-Browse: https://github.com/ocaml-ppx/ppx_deriving
