diff --git a/kubernetes/client/configuration.py b/kubernetes/client/configuration.py
index 5e150b4..bcc1cf3 100644
--- a/kubernetes/client/configuration.py
+++ b/kubernetes/client/configuration.py
@@ -11,6 +11,7 @@
 
 
 import copy
+import ssl
 import http.client as httplib
 import logging
 from logging import FileHandler
@@ -173,6 +174,7 @@ class Configuration:
     :param proxy: Proxy URL.
     :param no_proxy: Comma-separated hosts that bypass the proxy.
     :param proxy_headers: Proxy headers.
+    :param proxy_ssl_context: SSL context used only for the TLS handshake with the proxy itself, independent of the destination TLS settings.
     :param safe_chars_for_path_param: Safe characters for path parameter encoding.
     :param client_side_validation: Enable client-side validation. Default True.
     :param socket_options: Options to pass down to the underlying urllib3 socket.
@@ -228,6 +230,7 @@ conf = client.Configuration(
         proxy: Optional[str]=None,
         no_proxy: Optional[str]=None,
         proxy_headers: Optional[Any]=None,
+        proxy_ssl_context: Optional[ssl.SSLContext]=None,
         safe_chars_for_path_param: str='',
         client_side_validation: bool=True,
         socket_options: Optional[Any]=None,
@@ -351,6 +354,11 @@ conf = client.Configuration(
         self.proxy_headers = proxy_headers
         """Proxy headers
         """
+        self.proxy_ssl_context = proxy_ssl_context
+        """SSL context used only for the TLS handshake with
+           the proxy itself (e.g. an HTTPS CONNECT tunnel),
+           independent of the destination TLS settings above.
+        """
         self.safe_chars_for_path_param = safe_chars_for_path_param
         """Safe chars for path_param
         """
@@ -387,6 +395,9 @@ conf = client.Configuration(
                 if callable(copy_method):
                     setattr(result, k, copy_method())
                     continue
+            if k == 'proxy_ssl_context':
+                setattr(result, k, v)
+                continue
             setattr(result, k, copy.deepcopy(v, memo))
 
         # Loggers and their handlers are process-global.
diff --git a/kubernetes/client/rest.py b/kubernetes/client/rest.py
index 9fca6dc..04a812d 100644
--- a/kubernetes/client/rest.py
+++ b/kubernetes/client/rest.py
@@ -155,6 +155,10 @@ class RESTClientObject:
             else:
                 pool_args["proxy_url"] = configuration.proxy
                 pool_args["proxy_headers"] = configuration.proxy_headers
+                if configuration.proxy_ssl_context is not None:
+                    pool_args["proxy_ssl_context"] = (
+                        configuration.proxy_ssl_context
+                    )
                 self.pool_manager = urllib3.ProxyManager(**pool_args)
         else:
             self.pool_manager = urllib3.PoolManager(**pool_args)