diff --git a/pyproject.toml b/pyproject.toml
index 65a5943..e6932e0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,6 @@ packages = [
 python = "^3.6"
 dataclasses = {version = "^0.8", python = "<3.7"}
 cryptography = ">=2.1, <39"
-pyOpenSSL = {version = ">=0.15.1", optional = true}
 pyscard = "^1.9 || ^2.0"
 fido2 = ">=0.9, <2.0"
 click = "^7.0 || ^8.0"
diff --git a/tests/test_util.py b/tests/test_util.py
index 6ccda6c..b4460e4 100644
--- a/tests/test_util.py
+++ b/tests/test_util.py
@@ -8,7 +8,6 @@ from ykman.util import _parse_pkcs12_pyopenssl, _parse_pkcs12_cryptography
 from ykman.otp import format_oath_code, generate_static_pw, time_challenge
 from .util import open_file
 from cryptography.hazmat.primitives.serialization import pkcs12
-from OpenSSL import crypto
 
 import unittest
 
@@ -114,16 +113,6 @@ class TestUtilityFunctions(unittest.TestCase):
         ) as rsa_2048_key_cert_encrypted_pfx:
             self.assertTrue(is_pkcs12(rsa_2048_key_cert_encrypted_pfx.read()))
 
-    def test_parse_pkcs12(self):
-        with open_file("rsa_2048_key_cert.pfx") as rsa_2048_key_cert_pfx:
-            data = rsa_2048_key_cert_pfx.read()
-
-        key1, certs1 = _parse_pkcs12_cryptography(pkcs12, data, None)
-        key2, certs2 = _parse_pkcs12_pyopenssl(crypto, data, None)
-        self.assertEqual(key1.private_numbers(), key2.private_numbers())
-        self.assertEqual(1, len(certs1))
-        self.assertEqual(certs1, certs2)
-
     def test_is_pem(self):
         self.assertFalse(is_pem(b"just a byte string"))
         self.assertFalse(is_pem(None))