diff --git a/pkgs/development/python-modules/backports-strenum/default.nix b/pkgs/development/python-modules/backports-strenum/default.nix
index a23a79024a48..229f9282c355 100644
--- a/pkgs/development/python-modules/backports-strenum/default.nix
+++ b/pkgs/development/python-modules/backports-strenum/default.nix
@@ -1,17 +1,15 @@
 { lib
 , buildPythonPackage
 , fetchFromGitHub
+, poetry-core
 , pytestCheckHook
 , pythonOlder
-, setuptools
-, setuptools-scm
-, wheel
 }:
 
 buildPythonPackage rec {
   pname = "backports-strenum";
-  version = "1.2.4";
-  format = "pyproject";
+  version = "1.2.8";
+  pyproject = true;
 
   disabled = pythonOlder "3.8";
 
@@ -19,15 +17,11 @@ buildPythonPackage rec {
     owner = "clbarnes";
     repo = "backports.strenum";
     rev = "refs/tags/v${version}";
-    hash = "sha256-AhAMVawnBMJ45a3mpthUZvqTeqeCB1Uco4MSusLyA4E=";
+    hash = "sha256-jbMR9VAGsMAJTP2VQyRr+RPYwWwk8hGAYs4KoZEWa7U=";
   };
 
-  SETUPTOOLS_SCM_PRETEND_VERSION = version;
-
   nativeBuildInputs = [
-    setuptools
-    setuptools-scm
-    wheel
+    poetry-core
   ];
 
   nativeCheckInputs = [