diff --git a/pkgs/development/python-modules/jsonconversion/default.nix b/pkgs/development/python-modules/jsonconversion/default.nix
index 3dc4df890e424..50bda6d368657 100644
--- a/pkgs/development/python-modules/jsonconversion/default.nix
+++ b/pkgs/development/python-modules/jsonconversion/default.nix
@@ -2,9 +2,11 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  pytestCheckHook,
-  pdm-backend,
   numpy,
+  pdm-backend,
+  pytestCheckHook,
+  pythonAtLeast,
+  pythonOlder,
   setuptools,
 }:
 
@@ -13,6 +15,8 @@ buildPythonPackage rec {
   version = "1.0.1";
   pyproject = true;
 
+  disabled = pythonOlder "3.11";
+
   src = fetchFromGitHub {
     owner = "DLR-RM";
     repo = "python-jsonconversion";
@@ -20,15 +24,15 @@ buildPythonPackage rec {
     hash = "sha256-XmAQXu9YkkMUvpf/QVk4u1p8UyNfRb0NeoLxC1evCT4=";
   };
 
-  build-system = [
-    pdm-backend
-  ];
+  build-system = [ pdm-backend ];
 
   pythonRemoveDeps = [
     "pytest-runner"
     "pytest"
   ];
 
+  pythonRelaxDeps = [ "numpy" ];
+
   dependencies = [
     numpy
     setuptools
@@ -38,10 +42,13 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "jsonconversion" ];
 
+  disabledTests = lib.optionals (pythonAtLeast "3.13") [ "test_dict" ];
+
   meta = with lib; {
     description = "This python module helps converting arbitrary Python objects into JSON strings and back";
     homepage = "https://github.com/DLR-RM/python-jsonconversion";
+    changelog = "https://github.com/DLR-RM/python-jsonconversion/releases/tag/${version}";
     license = licenses.bsd2;
-    maintainers = [ maintainers.terlar ];
+    maintainers = with maintainers; [ terlar ];
   };
 }