diff --git a/pkgs/development/ocaml-modules/index/default.nix b/pkgs/development/ocaml-modules/index/default.nix
index 8e503f5ddd2..3649ee284ec 100644
--- a/pkgs/development/ocaml-modules/index/default.nix
+++ b/pkgs/development/ocaml-modules/index/default.nix
@@ -6,14 +6,14 @@
 
 buildDunePackage rec {
   pname = "index";
-  version = "1.4.0";
+  version = "1.4.1";
 
   src = fetchurl {
     url = "https://github.com/mirage/index/releases/download/${version}/index-${version}.tbz";
-    sha256 = "13xd858c50fs651p1y8x70323ff0gzbf6zgc0a25f6xh3rsmkn4c";
+    sha256 = "sha256:01i24m1xh7vn44sq7gsxg1z0jxa6rg80bpjcp3cvg6zfjpsl7sfx";
   };
 
-  minimumOCamlVersion = "4.08";
+  minimalOCamlVersion = "4.08";
   useDune2 = true;
 
   buildInputs = [
diff --git a/pkgs/development/ocaml-modules/progress/default.nix b/pkgs/development/ocaml-modules/progress/default.nix
index a3c0a5add3d..4c00ff98465 100644
--- a/pkgs/development/ocaml-modules/progress/default.nix
+++ b/pkgs/development/ocaml-modules/progress/default.nix
@@ -1,23 +1,20 @@
-{ lib, buildDunePackage, fetchurl
-, mtime, terminal_size, alcotest, astring, fmt
+{ lib, buildDunePackage
+, fmt, logs, mtime, optint, terminal, vector
+, alcotest, astring
 }:
 
 buildDunePackage rec {
   pname = "progress";
-  version = "0.1.1";
 
-  minimumOCamlVersion = "4.08";
+  minimalOCamlVersion = "4.08";
   useDune2 = true;
 
-  src = fetchurl {
-    url = "https://github.com/CraigFe/progress/releases/download/${version}/progress-${version}.tbz";
-    sha256 = "90c6bec19d014a4c6b0b67006f08bdfcf36981d2176769bebe0ccd75d6785a32";
-  };
+  inherit (terminal) version src;
 
-  propagatedBuildInputs = [ mtime terminal_size ];
+  propagatedBuildInputs = [ fmt logs mtime optint terminal vector ];
 
   doCheck = true;
-  checkInputs = [ alcotest astring fmt ];
+  checkInputs = [ alcotest astring ];
 
   meta = with lib; {
     description = "Progress bar library for OCaml";