diff --git a/docs/ciphers.rst b/docs/ciphers.rst
index b748dd87a..c3d6abc42 100644
--- a/docs/ciphers.rst
+++ b/docs/ciphers.rst
@@ -286,7 +286,7 @@ https://weakdh.org/sysadmin.html
 These lists may have been derived from Mozilla's recommendations.
 One of the authors clarified his view of the priorities for various changes as a result of the research at
 
-https://www.ietf.org/mail-archive/web/tls/current/msg16496.html
+https://web.archive.org/web/20150526022820/https://www.ietf.org/mail-archive/web/tls/current/msg16496.html
 
 In particular, he supports ECDHE and also supports the use of the standardized groups in the FF-DHE Internet-Draft mentioned above (which isn't clear from the group's original recommendations).