diff --git a/pkgs/development/python-modules/pyjet/default.nix b/pkgs/development/python-modules/pyjet/default.nix
deleted file mode 100644
index ed0a5281e0fa..000000000000
--- a/pkgs/development/python-modules/pyjet/default.nix
+++ /dev/null
@@ -1,35 +0,0 @@
-{ lib, buildPythonPackage, pythonOlder, fetchFromGitHub, cython, pytest, importlib-resources, numpy }:
-
-buildPythonPackage rec {
-  pname = "pyjet";
-  version = "1.9.0";
-  format = "setuptools";
-
-  # tests not included in pypi tarball
-  src = fetchFromGitHub {
-    owner = "scikit-hep";
-    repo = pname;
-    rev = "refs/tags/${version}";
-    hash = "sha256-0g0fCf0FIwde5Vsc/BJxjgMcs5llpD8JqOgFbMjOooc=";
-  };
-
-  nativeBuildInputs = [ cython ];
-  propagatedBuildInputs = [
-    numpy
-  ] ++ lib.optionals (pythonOlder "3.9") [
-    importlib-resources
-  ];
-
-  nativeCheckInputs = [ pytest ];
-  checkPhase = ''
-    mv pyjet _pyjet
-    pytest tests/
-  '';
-
-  meta = with lib; {
-    homepage = "https://github.com/scikit-hep/pyjet";
-    description = "The interface between FastJet and NumPy";
-    license = licenses.gpl2Plus;
-    maintainers = with maintainers; [ veprbl ];
-  };
-}
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index c849ddaba0a8..940a7ef8b771 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -331,6 +331,7 @@ mapAliases ({
   pyblake2 = throw "pyblake2 is deprecated in favor of hashlib"; # added 2023-04-23
   pyblock = throw "pyblock has been removed, since it is abandoned and broken"; # added 2023-06-20
   pydrive = throw "pydrive is broken and deprecated and has been replaced with pydrive2."; # added 2022-06-01
+  pyjet = throw "pyjet is deprecated, use fastjet instead"; # added 2023-05-10
   pygame_sdl2 = pygame-sdl2; # added 2024-01-07
   pygbm = throw "pygbm has been removed, since it is abandoned and broken"; # added 2023-06-20
   PyGithub = pygithub; # added 2023-02-19
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 6da27c72faa7..34a6e597710a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -11155,8 +11155,6 @@ self: super: with self; {
 
   pyisbn = callPackage ../development/python-modules/pyisbn { };
 
-  pyjet = callPackage ../development/python-modules/pyjet { };
-
   pyjks = callPackage ../development/python-modules/pyjks { };
 
   pyjnius = callPackage ../development/python-modules/pyjnius { };