diff --git a/pkgs/development/python-modules/daltonlens/default.nix b/pkgs/development/python-modules/daltonlens/default.nix
index c27c69f3f8da..6a91288eef4c 100644
--- a/pkgs/development/python-modules/daltonlens/default.nix
+++ b/pkgs/development/python-modules/daltonlens/default.nix
@@ -3,7 +3,6 @@
   buildPythonPackage,
   fetchPypi,
   setuptools,
-  setuptools-git,
   numpy,
   pillow,
   pytestCheckHook,
@@ -18,9 +17,13 @@ buildPythonPackage rec {
     hash = "sha256-T7fXlRdFtcVw5WURPqZhCmulUi1ZnCfCXgcLtTHeNas=";
   };
 
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace-fail "setup_requires = setuptools_git" ""
+  '';
+
   build-system = [
     setuptools
-    setuptools-git
   ];
 
   dependencies = [