diff --git a/pkgs/development/python-modules/webthing/default.nix b/pkgs/development/python-modules/webthing/default.nix
index 24712666a4d8..1fad7df705ec 100644
--- a/pkgs/development/python-modules/webthing/default.nix
+++ b/pkgs/development/python-modules/webthing/default.nix
@@ -2,6 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  setuptools,
   ifaddr,
   jsonschema,
   pyee,
@@ -9,19 +10,23 @@
   zeroconf,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "webthing";
   version = "0.15.0";
-  format = "setuptools";
+  pyproject = true;
+
+  __structuredAttrs = true;
 
   src = fetchFromGitHub {
     owner = "WebThingsIO";
     repo = "webthing-python";
-    rev = "v${version}";
+    tag = "v${finalAttrs.version}";
     hash = "sha256-z4GVycdq25QZxuzZPLg6nhj0MAD1bHrsqph4yHgmRhg=";
   };
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools ];
+
+  dependencies = [
     ifaddr
     jsonschema
     pyee
@@ -40,4 +45,4 @@ buildPythonPackage rec {
     license = with lib.licenses; [ mpl20 ];
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})