1 files changed, 2 insertions, 1 deletions
diff --git a/toytt.opam b/toytt.opam
index c126fcb..1a4a45c 100644
--- a/toytt.opam
+++ b/toytt.opam
@@ -11,7 +11,8 @@ doc: "https://url/to/documentation"
 bug-reports: "https://github.com/username/reponame/issues"
 depends: [
   "ocaml"
-  "dune" {>= "3.7"}
+  "dune" {>= "3.13"}
+  "ppx_deriving"
   "asai"
   "odoc" {with-doc}
 ]