diff --git a/pkgs/development/tools/ocaml/ocaml-top/default.nix b/pkgs/development/tools/ocaml/ocaml-top/default.nix
index 6c70b046cabc..2102796bbd6f 100644
--- a/pkgs/development/tools/ocaml/ocaml-top/default.nix
+++ b/pkgs/development/tools/ocaml/ocaml-top/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchzip, ncurses, ocamlPackages }:
+{ lib, fetchFromGitHub, ncurses, ocamlPackages }:
 
 with ocamlPackages; buildDunePackage rec {
   pname = "ocaml-top";
@@ -6,9 +6,11 @@ with ocamlPackages; buildDunePackage rec {
 
   useDune2 = true;
 
-  src = fetchzip {
-    url = "https://github.com/OCamlPro/ocaml-top/archive/${version}.tar.gz";
-    sha256 = "1r290m9vvr25lgaanivz05h0kf4fd3h5j61wj4hpp669zffcyyb5";
+  src = fetchFromGitHub {
+    owner = "OCamlPro";
+    repo = "ocaml-top";
+    rev = "1.2.0-rc";
+    sha256 = "sha256-ZXnPnPvJmHshkTwYWeBojrgJYAF/R6vUo0XkvVMFSeQ=";
   };
 
   buildInputs = [ ncurses ocp-build lablgtk3-sourceview3 ocp-index ];