diff --git a/pkgs/development/python-modules/basedtyping/default.nix b/pkgs/development/python-modules/basedtyping/default.nix
deleted file mode 100644
index cec4ffae28e0..000000000000
--- a/pkgs/development/python-modules/basedtyping/default.nix
+++ /dev/null
@@ -1,56 +0,0 @@
-{
-  lib,
-  buildPythonPackage,
-  fetchFromGitHub,
-  nix-update-script,
-
-  # build-system
-  poetry-core,
-
-  # propagates
-  typing-extensions,
-
-  # tests
-  pytestCheckHook,
-}:
-
-buildPythonPackage (finalAttrs: {
-  pname = "basedtyping";
-  version = "0.1.10";
-  pyproject = true;
-
-  src = fetchFromGitHub {
-    owner = "KotlinIsland";
-    repo = "basedtyping";
-    tag = "v${finalAttrs.version}";
-    hash = "sha256-IpIMO75jqJDzDgRPVEi6g7AprGeBeKbVH99XPDYUzTM=";
-  };
-
-  build-system = [
-    poetry-core
-  ];
-
-  dependencies = [
-    typing-extensions
-  ];
-
-  pythonImportsCheck = [
-    "basedtyping"
-    "basedtyping.runtime_only"
-    "basedtyping.transformer"
-  ];
-
-  nativeCheckInputs = [
-    pytestCheckHook
-  ];
-
-  passthru.updateScript = nix-update-script { };
-
-  meta = {
-    description = "Utilities for basedmypy";
-    homepage = "https://github.com/KotlinIsland/basedtyping";
-    changelog = "https://github.com/KotlinIsland/basedtyping/releases/tag/${finalAttrs.src.tag}";
-    license = lib.licenses.mit;
-    maintainers = with lib.maintainers; [ PerchunPak ];
-  };
-})
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index a540280d54f2..f6de0fa0ec7b 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -78,6 +78,7 @@ mapAliases {
   Babel = throw "'Babel' has been renamed to/replaced by 'babel'"; # Converted to throw 2025-10-29
   backports-functools-lru-cache = throw "'backports-functools-lru-cache' has been removed from nixpkgs as it was not longer used in python2"; # Added 2026-01-14
   backports_shutil_get_terminal_size = throw "'backports_shutil_get_terminal_size' has been renamed to/replaced by 'backports-shutil-get-terminal-size'"; # Converted to throw 2025-10-29
+  basedtyping = throw "basedtyping has been deprecated by upstream."; # added 2026-02-03
   basewood-av = throw "'basewood-av' has been removed due to being archived upstream and unused"; # added 2025-11-26
   bash_kernel = throw "'bash_kernel' has been renamed to/replaced by 'bash-kernel'"; # Converted to throw 2025-10-29
   beancount_docverif = throw "'beancount_docverif' has been renamed to/replaced by 'beancount-docverif'"; # Converted to throw 2025-10-29
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 2af888ba5d1d..bd16716cbd1f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1804,8 +1804,6 @@ self: super: with self; {
 
   basedmypy = callPackage ../development/python-modules/basedmypy { };
 
-  basedtyping = callPackage ../development/python-modules/basedtyping { };
-
   baseline = callPackage ../development/python-modules/baseline { };
 
   baselines = callPackage ../development/python-modules/baselines { };