diff --git a/zookeeper/content.md b/zookeeper/content.md
index 1de2028c9..bb6a4a58e 100644
--- a/zookeeper/content.md
+++ b/zookeeper/content.md
@@ -94,7 +94,7 @@ The id must be unique within the ensemble and should have a value between 1 and
 
 This variable allows you to specify a list of machines of the Zookeeper ensemble. Each entry has the form of `server.id=host:port:port`. Entries are separated with space. Do note that this variable will not have any effect if you start the container with a `/conf` directory that already contains the `zoo.cfg` file.
 
-In 3.5, the syntax of this has changed. Servers should be specified as such: `server.id=<address1>:<port1>:<port2>[:role];[<client port address>:]<client port>` [Zookeeper Dynamic Reconfiguration](http://zookeeper.apache.org/doc/trunk/zookeeperReconfig.html)
+In 3.5, the syntax of this has changed. Servers should be specified as such: `server.id=<address1>:<port1>:<port2>[:role];[<client port address>:]<client port>` [Zookeeper Dynamic Reconfiguration](http://zookeeper.apache.org/doc/r3.5.3-beta/zookeeperReconfig.html)
 
 ## Where to store data