diff --git a/pkgs/development/python-modules/pytradfri/default.nix b/pkgs/development/python-modules/pytradfri/default.nix
index cfbcc21fc6cb..ab7772360d65 100644
--- a/pkgs/development/python-modules/pytradfri/default.nix
+++ b/pkgs/development/python-modules/pytradfri/default.nix
@@ -3,6 +3,8 @@
   buildPythonPackage,
   pythonOlder,
   fetchFromGitHub,
+  fetchpatch2,
+  setuptools,
   aiocoap,
   dtlssocket,
   pydantic,
@@ -12,7 +14,7 @@
 buildPythonPackage rec {
   pname = "pytradfri";
   version = "13.0.0";
-  format = "setuptools";
+  pyproject = true;
 
   disabled = pythonOlder "3.9";
 
@@ -23,7 +25,18 @@ buildPythonPackage rec {
     hash = "sha256-CWv3ebDulZuiFP+nJ2Xr7U/HTDFTqA9VYC0USLkpWR0=";
   };
 
-  propagatedBuildInputs = [ pydantic ];
+  patches = [
+    (fetchpatch2 {
+      name = "pydantic2-compat.patch";
+      url = "https://github.com/home-assistant-libs/pytradfri/commit/ecd099837a0b4538a56301af6260fddde77fbbb1.patch";
+      excludes = [ "requirements.txt" ];
+      hash = "sha256-QsvBTB9evKyE1fcfDaB0SN21kHmNmLgGPs3GJHHsMJc=";
+    })
+  ];
+
+  build-system = [ setuptools ];
+
+  dependencies = [ pydantic ];
 
   optional-dependencies = {
     async = [
@@ -42,7 +55,5 @@ buildPythonPackage rec {
     changelog = "https://github.com/home-assistant-libs/pytradfri/releases/tag/${version}";
     license = licenses.mit;
     maintainers = with maintainers; [ dotlambda ];
-    # https://github.com/home-assistant-libs/pytradfri/issues/720
-    broken = versionAtLeast pydantic.version "2";
   };
 }