[[java-admin-indices-update-settings]]
==== Update Indices Settings

You can change index settings by calling:

[source,java]
--------------------------------------------------
client.admin().indices().prepareUpdateSettings("twitter")   <1>
        .setSettings(Settings.builder()                     <2>
                .put("index.number_of_replicas", 0)
        )
        .get();
--------------------------------------------------
<1> Index to update
<2> Settings

