diff --git a/CHANGES b/CHANGES
index 89ca0bdb8..04f9ab56a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -49,6 +49,7 @@ Version 0.8.3
   (affects bool caching).
 - Fixed an XSS problem with redirect targets coming from
   untrusted sources.
+- Redis cache backend now supports password authentication.
 
 Version 0.8.2
 -------------
@@ -362,7 +363,7 @@ Version 0.5.1
 - file upload streams no longer have to provide a truncate()
   method.
 - implemented :meth:`BaseRequest._form_parsing_failed`.
-- fixed #394 
+- fixed #394
 - :meth:`ImmutableDict.copy`, :meth:`ImmutableMultiDict.copy` and
   :meth:`ImmutableTypeConversionDict.copy` return mutable shallow
   copies.
@@ -436,7 +437,7 @@ Released on April 24th, codename Schlagbohrer.
 - added :mod:`werkzeug.contrib.lint`
 - added `passthrough_errors` to `run_simple`.
 - added `secure_filename`
-- added :func:`make_line_iter` 
+- added :func:`make_line_iter`
 - :class:`MultiDict` copies now instead of revealing internal
   lists to the caller for `getlist` and iteration functions that
   return lists.
diff --git a/werkzeug/contrib/cache.py b/werkzeug/contrib/cache.py
index becd85b0a..6b233257e 100644
--- a/werkzeug/contrib/cache.py
+++ b/werkzeug/contrib/cache.py
@@ -463,9 +463,13 @@ class RedisCache(BaseCache):
     .. versionchanged:: 0.8
        This cache backend now properly serializes objects.
 
+    .. versionchanged:: 0.8.3
+       This cache backend now supports password authentication.
+
     :param host: address of the Redis server or an object which API is
                  compatible with the official Python Redis client (redis-py).
-    :param port: port number on which Redis server listens for connections
+    :param port: port number on which Redis server listens for connections.
+    :param password: password authentication for the Redis server.
     :param default_timeout: the default timeout that is used if no timeout is
                             specified on :meth:`~BaseCache.set`.
     :param key_prefix: A prefix that should be added to all keys.