diff --git a/debian/changelog b/debian/changelog
index c66f007..6868dc4 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+ocaml-dssi (0.1.5+git20220111.1.9e75cbb-1) UNRELEASED; urgency=low
+
+  * New upstream snapshot.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Wed, 11 May 2022 03:25:26 -0000
+
 ocaml-dssi (0.1.5-1) unstable; urgency=medium
 
   * Team upload
diff --git a/dssi.opam b/dssi.opam
index bda950e..95c3ee1 100644
--- a/dssi.opam
+++ b/dssi.opam
@@ -10,6 +10,7 @@ bug-reports: "https://github.com/savonet/ocaml-dssi/issues"
 depends: [
   "dune" {>= "2.8"}
   "dune-configurator"
+  "ocaml" {>= "4.08"}
   "ladspa" {>= "0.2.1"}
   "conf-dssi"
   "odoc" {with-doc}
diff --git a/dune-project b/dune-project
index 41b7527..e4bc5c7 100644
--- a/dune-project
+++ b/dune-project
@@ -15,6 +15,7 @@
  (depends
   dune
   dune-configurator
+  (ocaml (>= 4.08))
   (ladspa (>= 0.2.1))
   conf-dssi)
 )