diff --git a/pkgs/development/python-modules/islpy/default.nix b/pkgs/development/python-modules/islpy/default.nix
index 08554808eb75..f69c15e52a2b 100644
--- a/pkgs/development/python-modules/islpy/default.nix
+++ b/pkgs/development/python-modules/islpy/default.nix
@@ -20,21 +20,16 @@
 
 buildPythonPackage rec {
   pname = "islpy";
-  version = "2024.2";
+  version = "2025.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "inducer";
     repo = "islpy";
     tag = "v${version}";
-    hash = "sha256-ixw9U4WqcXBW6KGBOsUImjsxmvG5XKCv4jCbTjJ4pjg=";
+    hash = "sha256-njwNijl7kAbU7v6Bd6p0J9KnYzXZi9gVdqSf8qD0FXE=";
   };
 
-  postPatch = ''
-    substituteInPlace pyproject.toml \
-        --replace-fail "setuptools>=42,<64;python_version<'3.12'" "setuptools>=42"
-  '';
-
   build-system = [
     cmake
     nanobind
@@ -56,7 +51,7 @@ buildPythonPackage rec {
 
   # Force resolving the package from $out to make generated ext files usable by tests
   preCheck = ''
-    mv islpy islpy.hidden
+    rm -rf islpy
   '';
 
   nativeCheckInputs = [ pytestCheckHook ];
@@ -66,6 +61,7 @@ buildPythonPackage rec {
   meta = {
     description = "Python wrapper around isl, an integer set library";
     homepage = "https://github.com/inducer/islpy";
+    changelog = "https://github.com/inducer/islpy/releases/tag/v${version}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ tomasajt ];
   };