diff --git a/pkgs/development/python-modules/universal-silabs-flasher/default.nix b/pkgs/development/python-modules/universal-silabs-flasher/default.nix
index 25488de230d8..c5ec09a67989 100644
--- a/pkgs/development/python-modules/universal-silabs-flasher/default.nix
+++ b/pkgs/development/python-modules/universal-silabs-flasher/default.nix
@@ -3,6 +3,7 @@
   stdenv,
   buildPythonPackage,
   fetchFromGitHub,
+  pythonOlder,
 
   # build-system
   setuptools,
@@ -27,14 +28,14 @@
 
 buildPythonPackage rec {
   pname = "universal-silabs-flasher";
-  version = "0.0.29";
+  version = "0.0.30";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "NabuCasa";
     repo = "universal-silabs-flasher";
     tag = "v${version}";
-    hash = "sha256-dXLk1lwSGPRNTwhi9MY6AcqlBtZwFt/EMS0juI4IpjQ=";
+    hash = "sha256-AAF3MswdhGgSVS6efUp+QylWykbNqHz2ThfBdD8E/ew=";
   };
 
   postPatch = ''
@@ -45,21 +46,18 @@ buildPythonPackage rec {
 
   build-system = [ setuptools ];
 
-  pythonRelaxDeps = [
-    # https://github.com/NabuCasa/universal-silabs-flasher/pull/50
-    "gpiod"
-  ];
-
-  propagatedBuildInputs = [
-    async-timeout
-    bellows
-    click
-    coloredlogs
-    crc
-    pyserial-asyncio-fast
-    typing-extensions
-    zigpy
-  ] ++ lib.optionals (stdenv.hostPlatform.isLinux) [ libgpiod ];
+  dependencies =
+    [
+      bellows
+      click
+      coloredlogs
+      crc
+      pyserial-asyncio-fast
+      typing-extensions
+      zigpy
+    ]
+    ++ lib.optionals (pythonOlder "3.11") [ async-timeout ]
+    ++ lib.optionals (stdenv.hostPlatform.isLinux) [ libgpiod ];
 
   nativeCheckInputs = [
     pytestCheckHook