diff --git a/pkgs/development/python-modules/demetriek/default.nix b/pkgs/development/python-modules/demetriek/default.nix
index 42205ac652f9..68f2660f6bb7 100644
--- a/pkgs/development/python-modules/demetriek/default.nix
+++ b/pkgs/development/python-modules/demetriek/default.nix
@@ -1,23 +1,24 @@
 { lib
 , aiohttp
+, aresponses
 , awesomeversion
 , backoff
 , buildPythonPackage
-, pydantic
 , fetchFromGitHub
 , fetchpatch
 , poetry-core
-, yarl
-, aresponses
+, pydantic
 , pytest-asyncio
 , pytestCheckHook
 , pythonOlder
+, pythonRelaxDepsHook
+, yarl
 }:
 
 buildPythonPackage rec {
   pname = "demetriek";
   version = "0.4.0";
-  format = "pyproject";
+  pyproject = true;
 
   disabled = pythonOlder "3.9";
 
@@ -45,8 +46,13 @@ buildPythonPackage rec {
       --replace "--cov" ""
   '';
 
+  pythonRelaxDeps = [
+    "pydantic"
+  ];
+
   nativeBuildInputs = [
     poetry-core
+    pythonRelaxDepsHook
   ];
 
   propagatedBuildInputs = [
@@ -72,6 +78,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Python client for LaMetric TIME devices";
     homepage = "https://github.com/frenck/python-demetriek";
+    changelog = "https://github.com/frenck/python-demetriek/releases/tag/v${version}";
     license = licenses.mit;
     maintainers = with maintainers; [ fab ];
   };