diff --git a/pkgs/development/python-modules/xknx/default.nix b/pkgs/development/python-modules/xknx/default.nix
index 88bf7541428b..3706e87bbeb0 100644
--- a/pkgs/development/python-modules/xknx/default.nix
+++ b/pkgs/development/python-modules/xknx/default.nix
@@ -2,7 +2,7 @@
 , buildPythonPackage
 , fetchFromGitHub
 , cryptography
-, netifaces
+, ifaddr
 , voluptuous
 , pyyaml
 , pytest-asyncio
@@ -12,7 +12,7 @@
 
 buildPythonPackage rec {
   pname = "xknx";
-  version = "0.20.4";
+  version = "0.21.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.8";
@@ -21,12 +21,12 @@ buildPythonPackage rec {
     owner = "XKNX";
     repo = pname;
     rev = "refs/tags/${version}";
-    sha256 = "sha256-uqFS/kveWLEmu+8L9dOprcQcO+Odq9lzfTI9lqIhaSw=";
+    sha256 = "sha256-9fpWl9mYhYwc8Ig4uCF1RJvWS3LqrZQx88IrdaSPo7c=";
   };
 
   propagatedBuildInputs = [
     cryptography
-    netifaces
+    ifaddr
   ];
 
   checkInputs = [
@@ -38,6 +38,11 @@ buildPythonPackage rec {
     "xknx"
   ];
 
+  disabledTests = [
+    # Test requires network access
+    "test_scan_timeout"
+  ];
+
   meta = with lib; {
     description = "KNX Library Written in Python";
     longDescription = ''