diff --git a/pkgs/development/python-modules/omegaconf/default.nix b/pkgs/development/python-modules/omegaconf/default.nix
index 7f34ff29fdbf..1071a642ef10 100644
--- a/pkgs/development/python-modules/omegaconf/default.nix
+++ b/pkgs/development/python-modules/omegaconf/default.nix
@@ -1,17 +1,19 @@
 { lib
+, antlr4_9-python3-runtime
 , buildPythonPackage
 , fetchFromGitHub
+, jre_minimal
+, pydevd
 , pytest-mock
 , pytestCheckHook
-, pyyaml
 , pythonOlder
-, jre_minimal
-, antlr4_9-python3-runtime
-, pydevd }:
+, pyyaml
+}:
 
 buildPythonPackage rec {
   pname = "omegaconf";
-  version = "2.2.2";
+  version = "2.2.3";
+  format = "setuptools";
 
   disabled = pythonOlder "3.6";
 
@@ -19,13 +21,9 @@ buildPythonPackage rec {
     owner = "omry";
     repo = pname;
     rev = "refs/tags/v${version}";
-    hash = "sha256-bUJ80sa2ot2JSkt29eFwSiKL6R1X1+VVeE9dFIy4Mg0=";
+    hash = "sha256-sJUYi0M/6SBSeKVSJoNY7IbVmzRZVTlek8AyL2cOPAM=";
   };
 
-  postPatch = ''
-    substituteInPlace setup.py --replace 'setup_requires=["pytest-runner"]' 'setup_requires=[]'
-  '';
-
   nativeBuildInputs = [
     jre_minimal
   ];
@@ -37,16 +35,18 @@ buildPythonPackage rec {
 
   checkInputs = [
     pydevd
-    pytestCheckHook
     pytest-mock
+    pytestCheckHook
   ];
 
-  pythonImportsCheck = [ "omegaconf" ];
+  pythonImportsCheck = [
+    "omegaconf"
+  ];
 
   meta = with lib; {
-    description = "A framework for configuring complex applications";
+    description = "Framework for configuring complex applications";
     homepage = "https://github.com/omry/omegaconf";
-    license = licenses.free;  # prior bsd license (1988)
+    license = licenses.bsd3;
     maintainers = with maintainers; [ bcdarwin ];
   };
 }