diff --git a/pkgs/development/python-modules/icnsutil/default.nix b/pkgs/development/python-modules/icnsutil/default.nix
index 2365bab42e65..cb5aa5c0e363 100644
--- a/pkgs/development/python-modules/icnsutil/default.nix
+++ b/pkgs/development/python-modules/icnsutil/default.nix
@@ -2,11 +2,15 @@
 , python
 , fetchFromGitHub
 , buildPythonPackage
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "icnsutil";
   version = "1.1.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "relikd";