diff --git a/dune-project b/dune-project
index 4cac296..c3ef2ac 100644
--- a/dune-project
+++ b/dune-project
@@ -19,7 +19,10 @@
  (name api)
  (synopsis "A short synopsis")
  (description "A longer description")
- (depends ocaml)
+ (depends 
+   ocaml
+   ppx_deriving_yojson.runtime
+   ppx_yojson_conv)
  (tags
   ("add topics" "to describe" your project)))