diff --git a/dune-project b/dune-project
index 1d71c23..44a7da9 100644
--- a/dune-project
+++ b/dune-project
@@ -20,10 +20,9 @@
  (synopsis "Bindings to ReactJS for js_of_ocaml, including JSX ppx")
  (depends
   ;; General system dependencies
-  (dune (and (>= 2) (< 4)))
-  (ocaml (and (>= 4.12.0) (< 5.0.0)))
+  (ocaml (>= 4.12.0))
 
-  (js_of_ocaml (and (>= 4.0.0) (< 5.2.0)))
+  (js_of_ocaml (>= 4.0.0))
   (gen_js_api (and (>= 1.0.8) (< 1.2.0)))
   (ppxlib (>= 0.23.0))
 
diff --git a/jsoo-react.opam b/jsoo-react.opam
index 0efebbd..a17b356 100644
--- a/jsoo-react.opam
+++ b/jsoo-react.opam
@@ -7,10 +7,9 @@ license: "MIT"
 homepage: "https://github.com/ml-in-barcelona/jsoo-react"
 bug-reports: "https://github.com/ml-in-barcelona/jsoo-react/issues"
 depends: [
-  "dune" {>= "2.7" & >= "2" & < "4"}
-  "ocaml" {>= "4.12.0" & < "5.0.0"}
-  "js_of_ocaml" {>= "4.0.0" & < "5.2.0"}
-  "gen_js_api" {>= "1.0.8" & < "1.2.0"}
+  "ocaml" {>= "4.12.0"}
+  "js_of_ocaml" {>= "4.0.0"}
+  "gen_js_api" {>= "1.0.8"}
   "ppxlib" {>= "0.23.0"}
   "webtest" {with-test}
   "webtest-js" {with-test}