diff --git a/pkgs/development/python-modules/uhi/default.nix b/pkgs/development/python-modules/uhi/default.nix
index c84408b339ed..500cb3130f39 100644
--- a/pkgs/development/python-modules/uhi/default.nix
+++ b/pkgs/development/python-modules/uhi/default.nix
@@ -4,26 +4,30 @@
   buildPythonPackage,
   hatchling,
   hatch-vcs,
+  fastjsonschema,
   numpy,
   pytestCheckHook,
 }:
 
 buildPythonPackage rec {
   pname = "uhi";
-  version = "0.4.0";
-  format = "pyproject";
+  version = "0.5.0";
+  pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-DctrGXdQh9OKMe44jLLHDy7P4ExP/iymMiNBDK5b7vo=";
+    hash = "sha256-lVm78vOPGKL8HY9zE5OWBo+I+JjWqa/IMyB+wP1Zoxw=";
   };
 
-  buildInputs = [
+  build-system = [
     hatchling
     hatch-vcs
   ];
 
-  propagatedBuildInputs = [ numpy ];
+  dependencies = [
+    fastjsonschema
+    numpy
+  ];
 
   checkInputs = [ pytestCheckHook ];