diff --git a/pkgs/development/python-modules/protonvpn-nm-lib/0001-Patching-GIRepository.patch b/pkgs/development/python-modules/protonvpn-nm-lib/0001-Patching-GIRepository.patch
new file mode 100644
index 00000000000..bb34dff0b5a
--- /dev/null
+++ b/pkgs/development/python-modules/protonvpn-nm-lib/0001-Patching-GIRepository.patch
@@ -0,0 +1,22 @@
+From 2867f022aad754fe54d95222b3ae52f6e7f14c2f Mon Sep 17 00:00:00 2001
+From: "P. R. d. O" <d.ol.rod@tutanota.com>
+Date: Wed, 27 Apr 2022 21:49:12 -0600
+Subject: [PATCH] Patching GIRepository
+
+---
+ protonvpn_nm_lib/__init__.py | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/protonvpn_nm_lib/__init__.py b/protonvpn_nm_lib/__init__.py
+index e69de29..00b95f4 100644
+--- a/protonvpn_nm_lib/__init__.py
++++ b/protonvpn_nm_lib/__init__.py
+@@ -0,0 +1,5 @@
++import gi
++gi.require_version('GIRepository', '2.0')
++from gi.repository import GIRepository
++repo = GIRepository.Repository.get_default()
++repo.prepend_search_path('@networkmanager_path@')
+-- 
+2.35.1
+
diff --git a/pkgs/development/python-modules/protonvpn-nm-lib/default.nix b/pkgs/development/python-modules/protonvpn-nm-lib/default.nix
index 9f12f220cfe..44e4b8e237d 100644
--- a/pkgs/development/python-modules/protonvpn-nm-lib/default.nix
+++ b/pkgs/development/python-modules/protonvpn-nm-lib/default.nix
@@ -2,6 +2,7 @@
 , buildPythonPackage
 , fetchFromGitHub
 , pythonOlder
+, substituteAll
 , distro
 , jinja2
 , keyring
@@ -9,18 +10,19 @@
 , pygobject3
 , pyxdg
 , systemd
+, networkmanager
 }:
 
 buildPythonPackage rec {
   pname = "protonvpn-nm-lib";
-  version = "3.8.0";
+  version = "3.9.0";
   disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "ProtonVPN";
     repo = pname;
     rev = version;
-    sha256 = "sha256-fAaP9c66LcbZgezadGPUt400YRnrnFoBvpzlc1zxuc4=";
+    sha256 = "sha256-yV3xeIyPc2DJj5DOa5PA1MHt00bjJ/Y9zZK77s/XRAA=";
   };
 
   propagatedBuildInputs = [
@@ -33,7 +35,15 @@ buildPythonPackage rec {
     systemd
   ];
 
-  # Project has a dummy test.
+  patches = [
+    (substituteAll {
+      src = ./0001-Patching-GIRepository.patch;
+      networkmanager_path = "${networkmanager}/lib/girepository-1.0";
+    })
+  ];
+
+  # Checks cannot be run in the sandbox
+  # "Failed to connect to socket /run/dbus/system_bus_socket: No such file or directory"
   doCheck = false;
 
   pythonImportsCheck = [ "protonvpn_nm_lib" ];