diff --git a/pkgs/applications/misc/sl1-to-photon/default.nix b/pkgs/applications/misc/sl1-to-photon/default.nix
index e76dff0ca570..901265016f8e 100644
--- a/pkgs/applications/misc/sl1-to-photon/default.nix
+++ b/pkgs/applications/misc/sl1-to-photon/default.nix
@@ -8,34 +8,34 @@
 , shiboken2
 }:
 let
-  version = "0.1.3";
+  version = "0.1.3+";
 in
  buildPythonApplication rec {
   pname = "sl1-to-photon";
   inherit version;
 
   src = fetchFromGitHub {
-    owner = "fookatchu";
+    owner = "cab404";
     repo = "SL1toPhoton";
-    rev = "v${version}";
-    sha256 = "1hmb74rcky3nax4lxn7pw6lcd5a66fdbwrm11c84zb31xb51bakw";
+    rev = "7edc6ea99818622f5d49ac7af80ddd4916b8c19f";
+    sha256 = "ssFfjlBMi3FHosDBUA2gs71VUIBkEdPVcV3STNxmOIM=";
   };
 
-  propagatedBuildInputs = [ pyphotonfile pillow numpy pyside2 shiboken2 ];
+  pythonPath = [ pyphotonfile pillow numpy pyside2 shiboken2 ];
 
-  format = "other";
+  format = "setuptools";
+  dontUseSetuptoolsCheck = true;
 
   installPhase = ''
     install -D -m 0755 SL1_to_Photon.py $out/bin/${pname}
-    sed -i '1i#!/usr/bin/env python' $out/bin/${pname}
   '';
 
   meta = with lib; {
     maintainers = [ maintainers.cab404 ];
     license = licenses.gpl3Plus;
     description = "Tool for converting Slic3r PE's SL1 files to Photon files for the Anycubic Photon 3D-Printer";
+    homepage = "https://github.com/cab404/SL1toPhoton";
     mainProgram = "sl1-to-photon";
-    homepage = "https://github.com/fookatchu/SL1toPhoton";
   };
 
 }
diff --git a/pkgs/development/python-modules/pyphotonfile/default.nix b/pkgs/development/python-modules/pyphotonfile/default.nix
index 9d7a30213869..c18d8c60d478 100644
--- a/pkgs/development/python-modules/pyphotonfile/default.nix
+++ b/pkgs/development/python-modules/pyphotonfile/default.nix
@@ -5,26 +5,28 @@
 , numpy
 }:
 let
-  version = "0.2.1";
-  format = "setuptools";
+  version = "0.2.1+";
 in
 buildPythonPackage {
   pname = "pyphotonfile";
+  format = "setuptools";
   inherit version;
+
+  dontUseSetuptoolsCheck = true;
   propagatedBuildInputs = [ pillow numpy ];
 
   src = fetchFromGitHub {
-    owner = "fookatchu";
+    owner = "cab404";
     repo = "pyphotonfile";
-    rev = "v${version}";
-    sha256 = "1hh1fcn7q3kyk2413pjs18xnxvzrchrisbpj2cd59jrdp0qzgv2s";
+    rev = "b7ee92a0071007bb1d6a5984262651beec26543d";
+    sha256 = "iB5ky4fPX8ZnvXlDpggqS/345k2x/mPC4cIgb9M0f/c=";
   };
 
   meta = with lib; {
     maintainers = [ maintainers.cab404 ];
     license = licenses.gpl3Plus;
     description = "Library for reading and writing files for the Anycubic Photon 3D-Printer";
-    homepage = "https://github.com/fookatchu/pyphotonfile";
+    homepage = "https://github.com/cab404/pyphotonfile";
   };
 
 }