diff --git a/default.nix b/default.nix
index 3ccbca0..fd3afc5 100644
--- a/default.nix
+++ b/default.nix
@@ -1,13 +1,13 @@
 { pkgs ? import <nixpkgs> {} }:
 
 let
-  rpi-gpio = pkgs.python3Packages.buildPythonPackage rec {
+  rpi-gpio = pkgs.python3Packages.buildPythonPackage {
     pname = "RPi.GPIO";
     version = "0.7.0";
 
-    src = pkgs.python3.pkgs.fetchPypi {
-      inherit pname version;
-      sha256 = "dCS8bCBUZnZPMPZmwYGHoIJAd9ryCylcQvCK6iy4fT8=";
+    src = builtins.fetchTarball {
+      url = "https://github.com/jfath/RPi.GPIO-Odroid/archive/1bf20794e6727631f2b4b053296455eba900507e.zip";
+      sha256 = "0xf64d88xvly7w8g2fbvdl4azp79ikxf49i1wlkrb3abfakmqc3p";
     };
 
     doChceck = false;