diff --git a/ocaml-migrate-parsetree.opam b/ocaml-migrate-parsetree.opam
index 78446d0b..488cf9b6 100644
--- a/ocaml-migrate-parsetree.opam
+++ b/ocaml-migrate-parsetree.opam
@@ -15,7 +15,7 @@ build: [
 ]
 depends: [
   "dune" {>= "1.11"}
-  "ocaml" {>= "4.02.3"}
+  "ocaml" {>= "4.02.3" & < "4.12"}
 ]
 synopsis: "Convert OCaml parsetrees between different versions"
 description: """