diff --git a/pkgs/development/python-modules/uxsim/add-qt-plugin-path-to-env.patch b/pkgs/development/python-modules/uxsim/add-qt-plugin-path-to-env.patch
index 42f001085d05..a496456caa48 100644
--- a/pkgs/development/python-modules/uxsim/add-qt-plugin-path-to-env.patch
+++ b/pkgs/development/python-modules/uxsim/add-qt-plugin-path-to-env.patch
@@ -1,24 +1,11 @@
 diff --git a/uxsim/__init__.py b/uxsim/__init__.py
-index 01e1ad1..de1f0fd 100644
+index cf661c5..540e6f8 100644
 --- a/uxsim/__init__.py
 +++ b/uxsim/__init__.py
-@@ -1,8 +1,14 @@
--from .uxsim import *
--from .utils import *
+@@ -1,3 +1,6 @@
 +import os
-+
- from .analyzer import *
-+from .utils import *
-+from .uxsim import *
-+
-+# Only set our own plugin path if it's not already set
-+if not os.getenv("QT_PLUGIN_PATH"): 
++if not os.getenv("QT_PLUGIN_PATH"):
 +    os.environ["QT_PLUGIN_PATH"] = "$NIX_QT_PLUGIN_PATH"
- 
- __version__ = "1.1.1"
- __author__ = "Toru Seo"
- __copyright__ = "Copyright (c) 2023 Toru Seo"
--__license__ = "MIT License"
-\ No newline at end of file
-+__license__ = "MIT License"
-
+ from .uxsim import *
+ from .utils import *
+ from .analyzer import *
diff --git a/pkgs/development/python-modules/uxsim/default.nix b/pkgs/development/python-modules/uxsim/default.nix
index e08eec1d6cf6..675e92a1de31 100644
--- a/pkgs/development/python-modules/uxsim/default.nix
+++ b/pkgs/development/python-modules/uxsim/default.nix
@@ -5,8 +5,8 @@
   setuptools,
   wheel,
   qt5,
-  hackgen-font,
-  python3,
+  python,
+  dill,
   matplotlib,
   numpy,
   pandas,
@@ -17,19 +17,17 @@
 }:
 buildPythonPackage rec {
   pname = "uxsim";
-  version = "1.1.1";
+  version = "1.3.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "toruseo";
     repo = "UXsim";
-    rev = "v${version}";
-    hash = "sha256-qPAFodvx+Z7RsRhzdTq1TRsbvrUFaqRJZxYg3FM6q8A=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-2lN2Cu0XXiYdLiE7phpGqhkBDjkmxLJt4ILb6ORWdCI=";
   };
 
-  patches = [
-    ./add-qt-plugin-path-to-env.patch
-  ];
+  patches = [ ./add-qt-plugin-path-to-env.patch ];
 
   nativeBuildInputs = [
     setuptools
@@ -37,6 +35,7 @@ buildPythonPackage rec {
   ];
 
   propagatedBuildInputs = [
+    dill
     matplotlib
     numpy
     pandas
@@ -46,24 +45,20 @@ buildPythonPackage rec {
     tqdm
   ];
 
-  pythonImportsCheck = ["uxsim"];
-
+  pythonImportsCheck = [ "uxsim" ];
 
   # QT_PLUGIN_PATH is required to be set for the program to produce its images
   # our patch sets it to $NIX_QT_PLUGIN_PATH if QT_PLUGIN_PATH is not set
   # and here we replace this string with the actual path to qt plugins
   postInstall = ''
-    substituteInPlace $out/${python3.sitePackages}/uxsim/__init__.py \
+    substituteInPlace $out/${python.sitePackages}/uxsim/__init__.py \
       --replace-fail '$NIX_QT_PLUGIN_PATH' '${qt5.qtbase.bin}/${qt5.qtbase.qtPluginPrefix}'
-
-    mkdir -p $out/${python3.sitePackages}/uxsim/files
-    ln -s ${hackgen-font}/share/fonts/hackgen/HackGen-Regular.ttf $out/${python3.sitePackages}/uxsim/files/
   '';
 
   meta = with lib; {
     description = "Vehicular traffic flow simulator in road network, written in pure Python";
     homepage = "https://github.com/toruseo/UXsim";
     license = licenses.mit;
-    maintainers = with maintainers; [vinnymeller];
+    maintainers = with maintainers; [ vinnymeller ];
   };
 }