diff --git a/pkgs/development/python-modules/aiolifx-themes/default.nix b/pkgs/development/python-modules/aiolifx-themes/default.nix
index 395918c916e7..aeac811c8f5a 100644
--- a/pkgs/development/python-modules/aiolifx-themes/default.nix
+++ b/pkgs/development/python-modules/aiolifx-themes/default.nix
@@ -13,7 +13,7 @@
 buildPythonPackage rec {
   pname = "aiolifx-themes";
   version = "0.4.10";
-  format = "pyproject";
+  pyproject = true;
 
   disabled = pythonOlder "3.9";
 
@@ -31,11 +31,6 @@ buildPythonPackage rec {
       --replace "typer = " "# unused: typer = "
   '';
 
-  postPatch = ''
-    substituteInPlace pyproject.toml \
-      --replace 'aiolifx = "^0.8.6"' 'aiolifx = "*"'
-  '';
-
   nativeBuildInputs = [
     poetry-core
   ];