diff --git a/dev-ml/ocaml-migrate-parsetree/ocaml-migrate-parsetree-2.3.0.ebuild b/dev-ml/ocaml-migrate-parsetree/ocaml-migrate-parsetree-2.3.0-r1.ebuild
similarity index 88%
rename from dev-ml/ocaml-migrate-parsetree/ocaml-migrate-parsetree-2.3.0.ebuild
rename to dev-ml/ocaml-migrate-parsetree/ocaml-migrate-parsetree-2.3.0-r1.ebuild
index 3d455ffdd72a..00665c508d52 100644
--- a/dev-ml/ocaml-migrate-parsetree/ocaml-migrate-parsetree-2.3.0.ebuild
+++ b/dev-ml/ocaml-migrate-parsetree/ocaml-migrate-parsetree-2.3.0-r1.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -15,5 +15,6 @@ KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~x86"
 IUSE="+ocamlopt test"
 RESTRICT="!test? ( test ) strip"
 
+RDEPEND="<dev-lang/ocaml-4.15"
 DEPEND="test? ( dev-ml/cinaps )"
 BDEPEND=">=dev-ml/dune-2.3"