diff --git a/.coveragerc b/.coveragerc
index 203ae5e..9fca84e 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1,13 +1,14 @@
 [run]
 branch = true
 parallel = true
+disable_warnings =
+  module-not-imported
 source =
   _generics
   generics
   app
   configuration
   examples
-  helpers
   mddoctest
   tests
 
diff --git a/.cruft.json b/.cruft.json
index fc4ec22..c7958a5 100644
--- a/.cruft.json
+++ b/.cruft.json
@@ -1,6 +1,6 @@
 {
   "template": "https://github.com/proofit404/python-library-template",
-  "commit": "805d005efe453acde4b46d88e8296f09dddfcd68",
+  "commit": "5be61c0a2d9c772d7f81fd4539244d0203eafa58",
   "checkout": null,
   "context": {
     "cookiecutter": {
diff --git a/docs/subtyping.md b/docs/subtyping.md
index 3330fa2..e693c7f 100644
--- a/docs/subtyping.md
+++ b/docs/subtyping.md
@@ -19,9 +19,9 @@ something similar to `zope.interface`. But default `ABC` library is widely
 supported by type checkers (like mypy) and language servers (reference search).
 That's why we decided not to reinvent our own wheel.
 
-We allow classes decorated by `@private`, `@defended` and `@delegated`
-decorators inherit from interfaces (`abc.ABC` subclasses) with some additional
-restrictions. See below.
+We allow classes decorated by `@private` and `@delegated` decorators inherit
+from interfaces (`abc.ABC` subclasses) with some additional restrictions. See
+below.
 
 ```pycon
 
diff --git a/release.config.js b/release.config.js
index 2cfbc42..4468b40 100644
--- a/release.config.js
+++ b/release.config.js
@@ -31,7 +31,7 @@ module.exports = {
     [
       "@semantic-release/git",
       {
-        assets: ["docs/changelog.md", "pyproject.toml"],
+        assets: ["docs/changelog.md", "pyproject.toml", "package.json"],
       },
     ],
     [
diff --git a/src/_generics/defended.py b/src/_generics/defended.py
deleted file mode 100644
index b1655d3..0000000
--- a/src/_generics/defended.py
+++ /dev/null
@@ -1,3 +0,0 @@
-def defended(cls):
-    """Create class validating constructor arguments based on their usage."""
-    return cls
diff --git a/src/generics/__init__.py b/src/generics/__init__.py
index 1ff9be7..d67065d 100644
--- a/src/generics/__init__.py
+++ b/src/generics/__init__.py
@@ -1,7 +1,6 @@
 """A classy toolkit designed with OOP in mind."""
-from _generics.defended import defended
 from _generics.delegated import delegated
 from _generics.private import private
 
 
-__all__ = ["private", "defended", "delegated"]
+__all__ = ["private", "delegated"]
diff --git a/testing/helpers.py b/testing/helpers.py
deleted file mode 100644
index e69de29..0000000
diff --git a/tests/test_defended.py b/tests/test_defended.py
deleted file mode 100644
index eee2af4..0000000
--- a/tests/test_defended.py
+++ /dev/null
@@ -1,4 +0,0 @@
-"""Tests related to the @defended decorator."""
-from generics import defended
-
-defended(None)
diff --git a/tests/test_subtyping.py b/tests/test_subtyping.py
index 7911bf9..5de762e 100644
--- a/tests/test_subtyping.py
+++ b/tests/test_subtyping.py
@@ -3,12 +3,11 @@
 
 import pytest
 
-from generics import defended
 from generics import delegated
 from generics import private
 
 
-pytestmark = pytest.mark.parametrize("f", [private, delegated, defended])
+pytestmark = pytest.mark.parametrize("f", [private, delegated])
 
 
 def test_allow_inheritance_from_interface(f, s):