diff --git a/pkgs/development/python-modules/pyarlo/default.nix b/pkgs/development/python-modules/pyarlo/default.nix
index 3b2b78843416..7952d46aee34 100644
--- a/pkgs/development/python-modules/pyarlo/default.nix
+++ b/pkgs/development/python-modules/pyarlo/default.nix
@@ -6,22 +6,25 @@
   pytestCheckHook,
   requests,
   requests-mock,
+  setuptools,
   sseclient-py,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalattrs: {
   pname = "pyarlo";
   version = "0.2.4";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "tchellomello";
     repo = "python-arlo";
-    rev = version;
+    tag = finalattrs.version;
     sha256 = "0pp7y2llk4xnf6zh57j5xas0gw5zqm42qaqssd8p4qa3g5rds8k3";
   };
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools ];
+
+  dependencies = [
     requests
     sseclient-py
   ];
@@ -37,7 +40,8 @@ buildPythonPackage rec {
   meta = {
     description = "Python library to work with Netgear Arlo cameras";
     homepage = "https://github.com/tchellomello/python-arlo";
-    license = with lib.licenses; [ lgpl3Plus ];
+    changelog = "https://github.com/tchellomello/python-arlo/releases/tag/${finalattrs.src.tag}";
+    license = lib.licenses.lgpl3Plus;
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})
diff --git a/pkgs/development/python-modules/sseclient-py/default.nix b/pkgs/development/python-modules/sseclient-py/default.nix
index a74fc325b226..30803aaa6b10 100644
--- a/pkgs/development/python-modules/sseclient-py/default.nix
+++ b/pkgs/development/python-modules/sseclient-py/default.nix
@@ -2,32 +2,33 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  hatchling,
   pytestCheckHook,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "sseclient-py";
   version = "1.9.0";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "mpetazzoni";
     repo = "sseclient";
-    tag = "sseclient-py-${version}";
+    tag = "sseclient-py-${finalAttrs.version}";
     hash = "sha256-AIldZFElGgSbw38aZWCWI1N35MiE+b9D1s/XhD7aIvo=";
   };
 
+  build-system = [ hatchling ];
+
   nativeCheckInputs = [ pytestCheckHook ];
 
   pythonImportsCheck = [ "sseclient" ];
 
-  enabledTestPaths = [ "tests/unittests.py" ];
-
   meta = {
     description = "Pure-Python Server Side Events (SSE) client";
     homepage = "https://github.com/mpetazzoni/sseclient";
-    changelog = "https://github.com/mpetazzoni/sseclient/releases/tag/sseclient-py-${src.tag}";
+    changelog = "https://github.com/mpetazzoni/sseclient/releases/tag/sseclient-py-${finalAttrs.src.tag}";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ jamiemagee ];
   };
-}
+})