How to use a plugin that I installed from pom.xml in IntelliJ?

I need to use the elasticsearch-analysis-decompound plugin.

I added the following to pom.xml:

<dependency>
    <groupId>org.xbib.elasticsearch.plugin</groupId>
        <artifactId>elasticsearch-analysis-decompound</artifactId>
    <version>2.1.1.0</version>
</dependency>

But still I cannot import any library from here!

I am using ES 2.1.1 and I need to load this plugin for tests.

What do I need to do now?