README.md in redis-4.0.0 vs README.md in redis-4.0.1

@@ -361,6 +361,6 @@
 [redis-home]:      https://redis.io
 [redis-url]:       http://www.iana.org/assignments/uri-schemes/prov/redis
 [travis-home]:     https://travis-ci.org/
 [travis-image]:    https://secure.travis-ci.org/redis/redis-rb.svg?branch=master
 [travis-link]:     https://travis-ci.org/redis/redis-rb
-[rubydoc]:         https://www.rubydoc.info/gems/redis
+[rubydoc]:         http://www.rubydoc.info/gems/redis