diff --git a/hooks/lib/certificate/certificate.py b/hooks/lib/certificate/certificate.py
index f3a0b8699..b2a205328 100644
--- a/hooks/lib/certificate/certificate.py
+++ b/hooks/lib/certificate/certificate.py
@@ -80,8 +80,8 @@ def with_metadata(self, country: str = None,
     def add_extension(self, type_name: str,
                       critical: bool,
                       value: str,
-                      subject: crypto.Optional["X509"] = None,
-                      issuer: crypto.Optional["X509"] = None):
+                      subject: crypto.X509 = None,
+                      issuer: crypto.X509 = None):
         """
         Adds extensions to certificate.
         :param type_name: The name of the type of extension_ to create.
@@ -96,10 +96,10 @@ def add_extension(self, type_name: str,
         :type value: :py:class:`str`
 
         :param subject: Optional X509 certificate to use as subject.
-        :type subject: :py:class:`crypto.Optional["X509"]`
+        :type subject: :py:class:`crypto.X509`
 
         :param issuer: Optional X509 certificate to use as issuer.
-        :type issuer: :py:class:`crypto.Optional["X509"]`
+        :type issuer: :py:class:`crypto.X509`
         """ 
         ext = crypto.X509Extension(type_name=str.encode(type_name),
                                    critical=critical,
diff --git a/lib/python/requirements.txt b/lib/python/requirements.txt
index c13f7a98f..0fcfc7ef2 100644
--- a/lib/python/requirements.txt
+++ b/lib/python/requirements.txt
@@ -1,11 +1,11 @@
 cffi==1.16.0
-cryptography==41.0.4
+cryptography==42.0.2
 DateTime==5.2
 deckhouse==0.4.9
 dictdiffer==0.9.0
 dotmap==1.3.30
 pycparser==2.21
-pyOpenSSL==23.2.0
+pyOpenSSL==24.0.0
 pytz==2023.3.post1
 PyYAML==6.0.1
 zope.interface==6.0
@@ -14,6 +14,5 @@ jsonpointer==2.4
 attrs==23.1.0
 jsonschema==4.19.1
 jsonschema-specifications==2023.7.1
+kubernetes==28.1.0
 kubernetes-validate==1.28.0
-rpds-py==0.10.6
-