diff --git a/pkgs/development/python-modules/dtschema/default.nix b/pkgs/development/python-modules/dtschema/default.nix
index cb4fa7fcdf47..4647dbbb3002 100644
--- a/pkgs/development/python-modules/dtschema/default.nix
+++ b/pkgs/development/python-modules/dtschema/default.nix
@@ -12,8 +12,8 @@
 
 buildPythonPackage rec {
   pname = "dtschema";
-  version = "2023.04";
-  format = "setuptools";
+  version = "2024.02";
+  format = "pyproject";
 
   disabled = pythonOlder "3.7";
 
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     owner = "devicetree-org";
     repo = "dt-schema";
     rev = "refs/tags/v${version}";
-    sha256 = "sha256-w9TsRdiDTdExft7rdb2hYcvxP6hxOFZKI3hITiNSwgw=";
+    sha256 = "sha256-UJU8b9BzuuUSHRjnA6hOd1bMPNOlk4LNtrQV5aZmGhI=";
   };
 
   patches = [
diff --git a/pkgs/development/python-modules/dtschema/fix_libfdt_name.patch b/pkgs/development/python-modules/dtschema/fix_libfdt_name.patch
index eb1ec34a95d6..093b13023fb3 100644
--- a/pkgs/development/python-modules/dtschema/fix_libfdt_name.patch
+++ b/pkgs/development/python-modules/dtschema/fix_libfdt_name.patch
@@ -1,13 +1,13 @@
-diff --git a/setup.py b/setup.py
-index 62db8af..4a980c1 100755
---- a/setup.py
-+++ b/setup.py
-@@ -52,7 +52,7 @@ setuptools.setup(
-         'ruamel.yaml>0.15.69',
-         'jsonschema>=4.1.2',
-         'rfc3987',
--        'pylibfdt',
-+        'libfdt',
-     ],
+diff --git a/pyproject.toml b/pyproject.toml
+index 2192a68..6a7ba95 100644
+--- a/pyproject.toml
++++ b/pyproject.toml
+@@ -27,7 +27,7 @@ dependencies = [
+     "ruamel.yaml>0.15.69",
+     "jsonschema>=4.1.2,<4.18",
+     "rfc3987",
+-    "pylibfdt",
++    "libfdt",
+ ]
  
-     classifiers=[
+ [project.scripts]