diff --git a/api.opam b/api.opam
index 517a2ca..e604900 100644
--- a/api.opam
+++ b/api.opam
@@ -16,6 +16,9 @@ depends: [
   "ppx_yojson_conv"
 	"cohttp-curl-lwt"
 	"ppx_expect"
+	"cohttp "
+	"cohttp-lwt-unix"
+	"yojson"
   "odoc" {with-doc}
 ]
 build: [