Don't use SSLv3 (#534)

diff --git a/tests/test_ssl.py b/tests/test_ssl.py
index 877edcb..ac57280 100644
--- a/tests/test_ssl.py
+++ b/tests/test_ssl.py
@@ -3490,7 +3490,7 @@
         :py:obj:`OpenSSL.SSL.bio_write` don't work on
         :py:obj:`OpenSSL.SSL.Connection`() that use sockets.
         """
-        context = Context(SSLv3_METHOD)
+        context = Context(TLSv1_METHOD)
         client = socket()
         clientSSL = Connection(context, client)
         self.assertRaises(TypeError, clientSSL.bio_read, 100)