diff --git a/pkgs/development/python-modules/rubymarshal/default.nix b/pkgs/development/python-modules/rubymarshal/default.nix
new file mode 100644
index 000000000000..7184795639c4
--- /dev/null
+++ b/pkgs/development/python-modules/rubymarshal/default.nix
@@ -0,0 +1,20 @@
+{ stdenv, buildPythonPackage, fetchPypi, python, hypothesis }:
+
+buildPythonPackage rec {
+  pname = "rubymarshal";
+  version = "1.0.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "131lbc18s3rlmby2dpbvi4msz13gqw6xvx067mh4zcx9npygn9r2";
+  };
+
+  propagatedBuildInputs = [ hypothesis ];
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/d9pouces/RubyMarshal/;
+    description = "Read and write Ruby-marshalled data";
+    license = licenses.wtfpl;
+    maintainers = [ maintainers.ryantm ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index fdd0b3564669..fe167d56c111 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -18195,6 +18195,8 @@ EOF
   pysdl2 = callPackage ../development/python-modules/pysdl2 { };
 
   pyogg = callPackage ../development/python-modules/pyogg { };
+
+  rubymarshal = callPackage ../development/python-modules/rubymarshal { };
 });
 
 in fix' (extends overrides packages)