diff --git a/dune-project b/dune-project
index 4dbae20db..364ae5505 100644
--- a/dune-project
+++ b/dune-project
@@ -21,7 +21,7 @@
    "Shon Feder <shon.feder@gmail.com>")
  (depends
   (ocaml (>= 4.08))
-  lwt))
+  (lwt (>= 5.3.0))))
 
 (package
  (name lwt_ppx)
diff --git a/lwt_retry.opam b/lwt_retry.opam
index 4e7a602ec..bf8413e56 100644
--- a/lwt_retry.opam
+++ b/lwt_retry.opam
@@ -12,7 +12,7 @@ bug-reports: "https://github.com/ocsigen/lwt/issues"
 depends: [
   "dune" {>= "2.0"}
   "ocaml" {>= "4.08"}
-  "lwt"
+  "lwt" {>= "5.3.0"}
 ]
 build: [
   ["dune" "subst"] {pinned}