diff --git a/warcprox/mitmproxy.py b/warcprox/mitmproxy.py
index 95d5b31..cfb86c9 100644
--- a/warcprox/mitmproxy.py
+++ b/warcprox/mitmproxy.py
@@ -64,6 +64,7 @@ import urlcanon
 import time
 import collections
 import cProfile
+from urllib3.util.ssl_ import DEFAULT_CIPHERS
 
 class ProxyingRecorder(object):
     """
@@ -257,8 +258,10 @@ class MitmProxyHandler(http_server.BaseHTTPRequestHandler):
                 context = ssl.create_default_context()
                 context.check_hostname = False
                 context.verify_mode = ssl.CERT_NONE
+                context.ciphers = DEFAULT_CIPHERS
                 self._remote_server_sock = context.wrap_socket(
-                        self._remote_server_sock, server_hostname=self.hostname)
+                        self._remote_server_sock, server_hostname=self.hostname,
+                        )
             except AttributeError:
                 try:
                     self._remote_server_sock = ssl.wrap_socket(