diff --git a/dune-project b/dune-project
index 1c0f90cf6e3..cca9f1c925a 100644
--- a/dune-project
+++ b/dune-project
@@ -154,11 +154,9 @@ understood by dune language."))
  (depends
   (dune-rpc (= :version))
   (csexp (>= 1.5.0))
-  (lwt (>= 5.3.0))
+  (lwt (>= 5.6.0))
   base-unix)
- (description "Specialization of dune-rpc to Lwt")
- (conflicts
-   (result (< 1.5))))
+ (description "Specialization of dune-rpc to Lwt"))
 
 (package
  (name dyn)
diff --git a/dune-rpc-lwt.opam b/dune-rpc-lwt.opam
index efda7b33caa..014f9d0a17a 100644
--- a/dune-rpc-lwt.opam
+++ b/dune-rpc-lwt.opam
@@ -12,13 +12,10 @@ depends: [
   "dune" {>= "3.12"}
   "dune-rpc" {= version}
   "csexp" {>= "1.5.0"}
-  "lwt" {>= "5.3.0"}
+  "lwt" {>= "5.6.0"}
   "base-unix"
   "odoc" {with-doc}
 ]
-conflicts: [
-  "result" {< "1.5"}
-]
 dev-repo: "git+https://github.com/ocaml/dune.git"
 build: [
   ["dune" "subst"] {dev}