diff --git a/pkgs/development/python-modules/flask-silk/default.nix b/pkgs/development/python-modules/flask-silk/default.nix
deleted file mode 100644
index 22d5075280d0..000000000000
--- a/pkgs/development/python-modules/flask-silk/default.nix
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-  lib,
-  buildPythonPackage,
-  fetchFromGitHub,
-  setuptools,
-  flask,
-  pytestCheckHook,
-}:
-
-buildPythonPackage {
-  pname = "flask-silk";
-  version = "0.2-unstable-2018-06-14";
-  pyproject = true;
-
-  # master fixes flask import syntax and has no major changes
-  # new release requested: https://github.com/sublee/flask-silk/pull/6
-  src = fetchFromGitHub {
-    owner = "sublee";
-    repo = "flask-silk";
-    rev = "3a8166550f9a0ec52edae7bf31d9818c4c15c531";
-    hash = "sha256-AFbGp/d+3Tci8Kj2BuT7GPdKQRBVb6PV1U6KwnH89FY=";
-  };
-
-  build-system = [ setuptools ];
-
-  dependencies = [ flask ];
-
-  pythonImportsCheck = [ "flask_silk" ];
-
-  nativeCheckInputs = [ pytestCheckHook ];
-
-  pytestFlagsArray = [ "test.py" ];
-
-  disabledTests = [
-    # requires network access
-    "test_subdomain"
-  ];
-
-  meta = {
-    description = "Adds silk icons to your Flask application or module, or extension";
-    license = lib.licenses.bsd3;
-    teams = [ lib.teams.sage ];
-    homepage = "https://github.com/sublee/flask-silk";
-  };
-}
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index b94e26f4121e..06bcf1a15c0d 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -266,6 +266,7 @@ mapAliases ({
   flask-common = throw "flask-common was removed, as it is not compatible with flask 3.0 and unmaintained since 2018."; # added 2025-01-11
   flask-basicauth = throw "flask-basicauth was removed, as it is not compatible with flask 3.0 and unmaintained since 2016.";
   flask-sessionstore = throw "flask-sessionstore was removed, as it is not compatible with flask 3.0 and unmaintained since 2017.";
+  flask-silk = throw "flask-silk was removed, as it is unmaintained since 2018."; # added 2025-05-25
   flask-sockets = throw "flask-sockets has been removed as the upstream repository was archived in 2022"; # Added 2025-01-01
   flowlogs_reader = flowlogs-reader; # added 2024-01-03
   flufl_bounce = flufl-bounce; # added 2023-11-03
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 7517bfd26122..e13b26e93746 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5125,8 +5125,6 @@ self: super: with self; {
 
   flask-session-captcha = callPackage ../development/python-modules/flask-session-captcha { };
 
-  flask-silk = callPackage ../development/python-modules/flask-silk { };
-
   flask-simpleldap = callPackage ../development/python-modules/flask-simpleldap { };
 
   flask-sock = callPackage ../development/python-modules/flask-sock { };