diff --git a/pkgs/development/python-modules/universal-silabs-flasher/default.nix b/pkgs/development/python-modules/universal-silabs-flasher/default.nix
index 3872cd5ce2a5..938856691b7a 100644
--- a/pkgs/development/python-modules/universal-silabs-flasher/default.nix
+++ b/pkgs/development/python-modules/universal-silabs-flasher/default.nix
@@ -2,6 +2,7 @@
 , stdenv
 , buildPythonPackage
 , fetchFromGitHub
+, pythonRelaxDepsHook
 
 # build-system
 , setuptools
@@ -26,21 +27,27 @@
 
 buildPythonPackage rec {
   pname = "universal-silabs-flasher";
-  version = "0.0.15";
+  version = "0.0.18";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "NabuCasa";
     repo = "universal-silabs-flasher";
     rev = "v${version}";
-    hash = "sha256-5hA1i2XzKzQDRrZfOaA6I3X7hU+nSd7HpcHHNIzZO7g=";
+    hash = "sha256-XUMpWzDqouhbsP+s0b13f6N0YGdXJK6qhbWQLqMzNHM=";
   };
 
   nativeBuildInputs = [
+    pythonRelaxDepsHook
     setuptools
     setuptools-git-versioning
   ];
 
+  pythonRelaxDeps = [
+    # https://github.com/NabuCasa/universal-silabs-flasher/pull/50
+    "gpiod"
+  ];
+
   propagatedBuildInputs = [
     async-timeout
     bellows