diff --git a/pkgs/development/ocaml-modules/gsl/default.nix b/pkgs/development/ocaml-modules/gsl/default.nix
index 02a49fd71773..48dd8817a565 100644
--- a/pkgs/development/ocaml-modules/gsl/default.nix
+++ b/pkgs/development/ocaml-modules/gsl/default.nix
@@ -1,4 +1,7 @@
-{ lib, stdenv, fetchFromGitHub, fetchpatch, buildDunePackage, pkg-config, gsl, darwin, dune-configurator }:
+{ lib, stdenv, ocaml, fetchFromGitHub, fetchpatch, buildDunePackage, pkg-config, gsl, darwin, dune-configurator }:
+
+lib.throwIf (lib.versionAtLeast ocaml.version "5.0")
+  "gsl is not available for OCaml ${ocaml.version}"
 
 buildDunePackage rec {
   pname = "gsl";
@@ -36,8 +39,6 @@ buildDunePackage rec {
     })
   ];
 
-  duneVersion = "3";
-
   nativeBuildInputs = [ pkg-config ];
   buildInputs = [ dune-configurator gsl ];
   propagatedBuildInputs = lib.optionals stdenv.isDarwin [ darwin.apple_sdk.frameworks.Accelerate ];