# Netty dependency issue with ElasticSearch 5.4

**URL:** <https://discuss.elastic.co/t/netty-dependency-issue-with-elasticsearch-5-4/89120>\
**Category:** Elasticsearch\
**Created:** [June 12, 2017, 10:08pm UTC](https://discuss.elastic.co/t/netty-dependency-issue-with-elasticsearch-5-4/89120 "2017-06-12T22:08:48Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![jasontedor](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jasontedor/32/66992_2.png) [@jasontedor](https://discuss.elastic.co/u/jasontedor)\
**Post date:** [June 16, 2017, 2:40am UTC](https://discuss.elastic.co/t/netty-dependency-issue-with-elasticsearch-5-4/89120/5 "2017-06-16T02:40:32Z")

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> [@gargdeepak](#):
>
> I did a mvn dependency tree and found the ES depends on both Netty3 and Netty4.

This is not a problem, Netty 3 and Netty 4 use completely different package names so there is no possibility of conflict.

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