diff --git a/docker/ciscoasa/dist/asa_server.py b/docker/ciscoasa/dist/asa_server.py
index e1883870..8950d97d 100644
--- a/docker/ciscoasa/dist/asa_server.py
+++ b/docker/ciscoasa/dist/asa_server.py
@@ -290,7 +290,10 @@ if __name__ == '__main__':
             if not cert:
                 import gencert
                 cert = gencert.gencert()
-            httpd.socket = ssl.wrap_socket(httpd.socket, certfile=cert, server_side=True)
+            context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
+            context.minimum_version = ssl.TLSVersion.TLSv1_2
+            context.load_cert_chain(certfile=cert)
+            httpd.socket = context.wrap_socket(httpd.socket, server_side=True)
 
         logger.info('Starting server on port {:d}/tcp, use <Ctrl-C> to stop'.format(port))
         hpfl.log('info', 'Starting server on port {:d}/tcp, use <Ctrl-C> to stop'.format(port))