diff --git a/artiq-fast/pkgs/python-deps.nix b/artiq-fast/pkgs/python-deps.nix
index ed02fb2..42767f7 100644
--- a/artiq-fast/pkgs/python-deps.nix
+++ b/artiq-fast/pkgs/python-deps.nix
@@ -72,20 +72,6 @@ rec {
     propagatedBuildInputs = with python3Packages; [ scipy numpy pyqt5 pyopengl ];
   };
 
-  # TODO: use python3Packages.pyftdi starting with NixOS 19.09 or later
-  # Upstream PR: https://github.com/NixOS/nixpkgs/pull/61256
-  pyftdi = python3Packages.buildPythonPackage rec {
-    name = "pyftdi";
-    src = fetchFromGitHub {
-      owner = "eblot";
-      repo = "pyftdi";
-      rev = "8e6f0bab6cff3eb60d2dbe578d0c5a2d1a9e135c";
-      sha256 = "0mw79fjnvswa0j3bzr0y906rz1vjbr8lwy0albgvsfr0ngwbajqy";
-    };
-    propagatedBuildInputs = with python3Packages; [ pyusb pyserial ];
-  };
-
-
   # Development/firmware dependencies
   misoc = python3Packages.buildPythonPackage rec {
     name = "misoc";