diff --git a/pkgs/development/ocaml-modules/morbig/default.nix b/pkgs/development/ocaml-modules/morbig/default.nix
new file mode 100644
index 000000000000..951bf8ea00c7
--- /dev/null
+++ b/pkgs/development/ocaml-modules/morbig/default.nix
@@ -0,0 +1,33 @@
+{ lib, buildDunePackage, fetchFromGitHub, ocamlPackages }:
+
+buildDunePackage rec {
+  pname = "morbig";
+  version = "0.11.0";
+
+  src = fetchFromGitHub {
+    owner = "colis-anr";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-fOBaJHHP/Imi9UDLflI52OdKDcmMxpl+NH3pfofmv/o=";
+  };
+
+  duneVersion = "3";
+
+  nativeBuildInputs = with ocamlPackages; [
+    menhir
+  ];
+
+  propagatedBuildInputs = with ocamlPackages; [
+    menhirLib
+    ppx_deriving_yojson
+    visitors
+    yojson
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/colis-anr/${pname}";
+    description = "A static parser for POSIX Shell";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ niols ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 590da4ef770d..ebf6ba6dc056 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1042,6 +1042,8 @@ let
 
     mmap =  callPackage ../development/ocaml-modules/mmap { };
 
+    morbig = callPackage ../development/ocaml-modules/morbig { };
+
     mparser =  callPackage ../development/ocaml-modules/mparser { };
 
     mparser-pcre =  callPackage ../development/ocaml-modules/mparser/pcre.nix { };