diff --git a/pkgs/development/python-modules/deform/default.nix b/pkgs/development/python-modules/deform/default.nix
index c30add3f1edcc..082c0a8ff4475 100644
--- a/pkgs/development/python-modules/deform/default.nix
+++ b/pkgs/development/python-modules/deform/default.nix
@@ -8,7 +8,7 @@
   peppercorn,
   translationstring,
   zope-deprecation,
-  nose,
+  setuptools,
   coverage,
   beautifulsoup4,
   flaky,
@@ -19,14 +19,16 @@
 buildPythonPackage rec {
   pname = "deform";
   version = "2.0.15";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1e912937650c1dbb830079dd9c039950762a230223a567740fbf1b23f1090367";
+    hash = "sha256-HpEpN2UMHbuDAHndnAOZUHYqIwIjpWd0D78bI/EJA2c=";
   };
 
-  propagatedBuildInputs = [
+  build-system = [ setuptools ];
+
+  dependencies = [
     chameleon
     colander
     iso8601
@@ -36,7 +38,6 @@ buildPythonPackage rec {
   ];
 
   nativeCheckInputs = [
-    nose
     coverage
     beautifulsoup4
     flaky
@@ -44,10 +45,11 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
-  meta = with lib; {
+  meta = {
     description = "Form library with advanced features like nested forms";
     homepage = "https://docs.pylonsproject.org/projects/deform/en/latest/";
-    license = licenses.free; # http://www.repoze.org/LICENSE.txt
-    maintainers = with maintainers; [ domenkozar ];
+    # https://github.com/Pylons/deform/blob/fdc43d59de7d11b0e3ba1b92835b780cfe181719/LICENSE.txt
+    license = [ lib.licenses.bsd3 lib.licenses.cc-by-30 ];
+    maintainers = with lib.maintainers; [ domenkozar ];
   };
 }