diff --git a/pkgs/development/python-modules/agate/default.nix b/pkgs/development/python-modules/agate/default.nix
index 9c464014bb61..48a30b9a40ef 100644
--- a/pkgs/development/python-modules/agate/default.nix
+++ b/pkgs/development/python-modules/agate/default.nix
@@ -7,30 +7,35 @@
 , isodate
 , leather
 , lxml
-, nose
 , parsedatetime
 , pyicu
+, pynose
 , python-slugify
-, pytimeparse
 , pythonOlder
+, pytimeparse
 , pytz
+, setuptools
 }:
 
 buildPythonPackage rec {
   pname = "agate";
   version = "1.9.1";
-  format = "setuptools";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "wireservice";
-    repo = pname;
+    repo = "agate";
     rev = "refs/tags/${version}";
     hash = "sha256-I7jvZA/m06kUuUcfglySaroDbJ5wbgiF2lb84EFPmpw=";
   };
 
-  propagatedBuildInputs = [
+  build-system = [
+    setuptools
+  ];
+
+  dependencies = [
     babel
     isodate
     leather
@@ -43,7 +48,7 @@ buildPythonPackage rec {
     cssselect
     glibcLocales
     lxml
-    nose
+    pynose
     pyicu
     pytz
   ];
diff --git a/pkgs/development/python-modules/pytimeparse/default.nix b/pkgs/development/python-modules/pytimeparse/default.nix
index 41cfa632dd2e..ec7dac91c12a 100644
--- a/pkgs/development/python-modules/pytimeparse/default.nix
+++ b/pkgs/development/python-modules/pytimeparse/default.nix
@@ -1,21 +1,40 @@
-{ lib, fetchPypi, buildPythonPackage, nose }:
+{ lib
+, buildPythonPackage
+, fetchPypi
+, pynose
+, pythonOlder
+, setuptools
+}:
 
 buildPythonPackage rec {
-    pname = "pytimeparse";
-    version = "1.1.8";
-    format = "setuptools";
+  pname = "pytimeparse";
+  version = "1.1.8";
+  pyproject = true;
 
-    src = fetchPypi {
-      inherit pname version;
-      sha256 = "e86136477be924d7e670646a98561957e8ca7308d44841e21f5ddea757556a0a";
-    };
+  disabled = pythonOlder "3.7";
 
-    nativeCheckInputs = [ nose ];
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-6GE2R3vpJNfmcGRqmFYZV+jKcwjUSEHiH13ep1dVago=";
+  };
 
-    meta = with lib; {
-      description = "A small Python library to parse various kinds of time expressions";
-      homepage    = "https://github.com/wroberts/pytimeparse";
-      license     = licenses.mit;
-      maintainers = with maintainers; [ vrthra ];
-    };
+  build-system = [
+    setuptools
+  ];
+
+  nativeCheckInputs = [
+    pynose
+  ];
+
+  pythonImportsCheck = [
+    "pytimeparse"
+  ];
+
+  meta = with lib; {
+    description = "Library to parse various kinds of time expressions";
+    homepage = "https://github.com/wroberts/pytimeparse";
+    changelog = "https://github.com/wroberts/pytimeparse/releases/tag/${version}";
+    license = licenses.mit;
+    maintainers = with maintainers; [ vrthra ];
+  };
 }