diff --git a/pkgs/development/ocaml-modules/arg-complete/default.nix b/pkgs/development/ocaml-modules/arg-complete/default.nix
new file mode 100644
index 000000000000..341971b35e88
--- /dev/null
+++ b/pkgs/development/ocaml-modules/arg-complete/default.nix
@@ -0,0 +1,31 @@
+{
+  lib,
+  fetchurl,
+  ocaml,
+  buildDunePackage,
+  cppo,
+  ounit2,
+}:
+
+buildDunePackage rec {
+  pname = "arg-complete";
+  version = "0.2.1";
+
+  src = fetchurl {
+    url = "https://github.com/sim642/ocaml-arg-complete/releases/download/${version}/arg-complete-${version}.tbz";
+    hash = "sha256-SZvLaeeqY3j2LUvqxGs0Vw57JnnpdvAk1jnE3pk27QU=";
+  };
+
+  nativeBuildInputs = [ cppo ];
+
+  doCheck = lib.versionAtLeast ocaml.version "4.08";
+  checkInputs = [ ounit2 ];
+
+  meta = {
+    description = "Bash completion support for OCaml Stdlib.Arg";
+    homepage = "https://sim642.github.io/ocaml-arg-complete/";
+    changelog = "https://raw.githubusercontent.com/sim642/ocaml-arg-complete/refs/tags/${version}/CHANGELOG.md";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.vbgl ];
+  };
+}
diff --git a/pkgs/development/ocaml-modules/mopsa/default.nix b/pkgs/development/ocaml-modules/mopsa/default.nix
index 8f084ef9618d..456a7e85a663 100644
--- a/pkgs/development/ocaml-modules/mopsa/default.nix
+++ b/pkgs/development/ocaml-modules/mopsa/default.nix
@@ -11,6 +11,7 @@
   ocaml,
   menhir,
   apron,
+  arg-complete,
   camlidl,
   yojson,
   zarith,
@@ -18,15 +19,15 @@
 
 buildDunePackage rec {
   pname = "mopsa";
-  version = "1.0";
+  version = "1.1";
 
-  minimalOCamlVersion = "4.12";
+  minimalOCamlVersion = "4.13";
 
   src = fetchFromGitLab {
     owner = "mopsa";
     repo = "mopsa-analyzer";
-    rev = "v${version}";
-    hash = "sha256-nGnWwV7g3SYgShbXGUMooyOdFwXFrQHnQvlc8x9TAS4=";
+    tag = "v${version}";
+    hash = "sha256-lO5dtGAl1dq8oJco/hPXrAbN05rKc62Zrci/8CLrQ0c=";
   };
 
   nativeBuildInputs = [
@@ -36,6 +37,7 @@ buildDunePackage rec {
   ];
 
   buildInputs = [
+    arg-complete
     camlidl
     flint
     libclang
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 09bda1d9cebe..10651337cb3e 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -38,6 +38,8 @@ let
 
     apron = callPackage ../development/ocaml-modules/apron { };
 
+    arg-complete = callPackage ../development/ocaml-modules/arg-complete { };
+
     arp = callPackage ../development/ocaml-modules/arp { };
 
     asai = callPackage ../development/ocaml-modules/asai { };