1 files changed, 8 insertions, 9 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/pyrsistent/default.nix b/nixpkgs/pkgs/development/python-modules/pyrsistent/default.nix
index 2f21caa001d3..fae4bba430d3 100644
--- a/nixpkgs/pkgs/development/python-modules/pyrsistent/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/pyrsistent/default.nix
@@ -2,6 +2,7 @@
 , buildPythonPackage
 , fetchPypi
 , isPy27
+, setuptools
 , six
 , pytestCheckHook
 , hypothesis
@@ -9,26 +10,24 @@
 
 buildPythonPackage rec {
   pname = "pyrsistent";
-  version = "0.19.3";
-  format = "setuptools";
+  version = "0.20.0";
+  pyproject = true;
 
   disabled = isPy27;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-GimUdzcGu7SZXDGpe8lPFBgxSSO9EEjG2WSDcEA3ZEA=";
+    hash = "sha256-TEj3j2KrWWxnkIYITQ3RMlSuTz1scqg//fXr3vjyZaQ=";
   };
 
+  nativeBuildInputs = [
+    setuptools
+  ];
+
   propagatedBuildInputs = [ six ];
 
   nativeCheckInputs = [ pytestCheckHook hypothesis ];
 
-  postPatch = ''
-    substituteInPlace setup.py \
-      --replace 'pytest<5' 'pytest' \
-      --replace 'hypothesis<5' 'hypothesis'
-  '';
-
   pythonImportsCheck = [ "pyrsistent" ];
 
   meta = with lib; {