diff --git a/jaraco/crypto/cert.py b/jaraco/crypto/cert.py
index 8a35023..eb46879 100644
--- a/jaraco/crypto/cert.py
+++ b/jaraco/crypto/cert.py
@@ -1,4 +1,7 @@
+from __future__ import annotations
+
 import ctypes
+from typing import ClassVar
 
 from .support import find_library
 
@@ -50,7 +53,7 @@ class BIO(ctypes.Structure):
 
 
 class X509(ctypes.Structure):
-    _fields_ = []  # type: ignore
+    _fields_: ClassVar[list[tuple[str, type[ctypes._CData]]]] = []
 
     def get_serial_number(self):
         asn1_i = lib.X509_get_serialNumber(ctypes.byref(self))
diff --git a/jaraco/crypto/cipher.py b/jaraco/crypto/cipher.py
index 9796658..3e3e49c 100644
--- a/jaraco/crypto/cipher.py
+++ b/jaraco/crypto/cipher.py
@@ -104,8 +104,8 @@ def finalize(self, data=None):
         return b"".join(self.out_data)
 
 
-evp.get_cipherbyname.argtypes = (ctypes.c_char_p,)  # type: ignore
-evp.get_cipherbyname.restype = ctypes.POINTER(CipherType)  # type: ignore
+evp.get_cipherbyname.argtypes = (ctypes.c_char_p,)
+evp.get_cipherbyname.restype = ctypes.POINTER(CipherType)
 
 
 # https://www.openssl.org/docs/man3.1/man3/EVP_CipherInit_ex.html
@@ -130,16 +130,16 @@ def finalize(self, data=None):
     ctypes.c_char_p,  # out[m]
     ctypes.POINTER(ctypes.c_int),  # outl
 )
-evp.EncryptInit_ex.argtypes = (  # type: ignore
-    evp.DecryptInit_ex.argtypes  # type: ignore
-) = _init_args[:2] + _init_args[3:5]
-evp.CipherInit_ex.argtypes = _init_args  # type: ignore
-evp.EncryptUpdate.argtypes = (  # type: ignore
-    evp.DecryptUpdate.argtypes  # type: ignore
-) = evp.CipherUpdate.argtypes = _update_args  # type: ignore
-evp.EncryptFinal_ex.argtypes = (  # type: ignore
-    evp.DecryptFinal_ex.argtypes  # type: ignore
-) = evp.CipherFinal_ex.argtypes = _final_args  # type: ignore
+evp.EncryptInit_ex.argtypes = evp.DecryptInit_ex.argtypes = (
+    _init_args[:2] + _init_args[3:5]
+)
+evp.CipherInit_ex.argtypes = _init_args
+evp.EncryptUpdate.argtypes = evp.DecryptUpdate.argtypes = evp.CipherUpdate.argtypes = (
+    _update_args
+)
+evp.EncryptFinal_ex.argtypes = evp.DecryptFinal_ex.argtypes = (
+    evp.CipherFinal_ex.argtypes
+) = _final_args
 
 evp.lib.EVP_CIPHER_CTX_new.argtypes = None
 evp.lib.EVP_CIPHER_CTX_new.restype = ctypes.POINTER(Cipher)
diff --git a/mypy.ini b/mypy.ini
index efcb8cb..f65ddc3 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -13,3 +13,5 @@ explicit_package_bases = True
 disable_error_code =
 	# Disable due to many false positives
 	overload-overlap,
+	# This package has too many dynamically assigned attributes
+	attr-defined,
diff --git a/pyproject.toml b/pyproject.toml
index 395a110..e57f15e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -74,7 +74,3 @@ namespaces = true
 
 
 [tool.setuptools_scm]
-
-
-[tool.pytest-enabler.mypy]
-# Disabled due to jaraco/skeleton#143