1 files changed, 2 insertions, 2 deletions
diff --git a/disml.opam b/disml.opam
index 37b2fd8..3ffd4fb 100644
--- a/disml.opam
+++ b/disml.opam
@@ -27,10 +27,10 @@ depends: [
   "core" {>= "v0.11.3"}
   "decompress" {>= "0.8"}
   "odoc" {with-doc & >= "1.3.0"}
-  "ppx_deriving_yojson" {>= "3.3"}
+  "ppx_deriving_yojson" {>= "3.1"}
   "ppx_sexp_conv" {>= "v0.11.2"}
   "websocket-async" {>= "2.12"}
-  "yojson" {< "1.6.0"}
+  "yojson" {>= "1.6.0"}
 ]
 build: [
   ["dune" "subst"] {pinned}