diff --git a/pkcs11_cryptography_keys/keys/ec.py b/pkcs11_cryptography_keys/keys/ec.py
index 1537cae..efeea88 100644
--- a/pkcs11_cryptography_keys/keys/ec.py
+++ b/pkcs11_cryptography_keys/keys/ec.py
@@ -27,7 +27,6 @@
 
 from pkcs11_cryptography_keys.card_token.PKCS11_token import PKCS11Token
 
-
 # Translation from mechanism read from the card to parameters needed for cryptography API
 # At init time this is used to for operations list for later use in function calls as card limitations
 _digest_algorithm_implementations: Dict[str, Dict] = {
diff --git a/pkcs11_cryptography_keys/keys/rsa.py b/pkcs11_cryptography_keys/keys/rsa.py
index f561c36..d4f0fa2 100644
--- a/pkcs11_cryptography_keys/keys/rsa.py
+++ b/pkcs11_cryptography_keys/keys/rsa.py
@@ -10,13 +10,11 @@
 from cryptography.hazmat.backends import default_backend
 from cryptography.hazmat.primitives import _serialization, hashes
 from cryptography.hazmat.primitives._asymmetric import AsymmetricPadding
-from cryptography.hazmat.primitives.asymmetric import (
-    utils as asym_utils,
-)
+from cryptography.hazmat.primitives.asymmetric import utils as asym_utils
 from cryptography.hazmat.primitives.asymmetric.padding import (
-    PKCS1v15,
     OAEP,
     PSS,
+    PKCS1v15,
 )
 from cryptography.hazmat.primitives.asymmetric.rsa import (
     RSAPrivateKey,