# Upgrade an old ELK to 5.4.2 one

**URL:** <https://discuss.elastic.co/t/upgrade-an-old-elk-to-5-4-2-one/90657>\
**Category:** Kibana\
**Created:** [June 23, 2017, 2:54pm UTC](https://discuss.elastic.co/t/upgrade-an-old-elk-to-5-4-2-one/90657 "2017-06-23T14:54:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![OlFo](https://avatars.discourse-cdn.com/v4/letter/o/58956e/32.png) [@OlFo](https://discuss.elastic.co/u/OlFo)\
**Post date:** [June 23, 2017, 2:54pm UTC](https://discuss.elastic.co/t/upgrade-an-old-elk-to-5-4-2-one/90657/1 "2017-06-23T14:54:34Z")

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Hi everyone,

The former sys admin set a Logstash - Elasticsearch - Kibana service.  
The setting is:

CentOS 6.6  
Logstash-1.4.4-1  
Elasticsearch-1.4.2-1  
Kibana-4.1.1

I face many issues with this configuration.  
I would like upgrade everything to 5.4.2 version and keep conf files of course 🙂 .  
Can I easily upgrade it ?

Thanks for your support,  
OlFo

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**Author:** ![tylersmalley](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tylersmalley/32/8833_2.png) [@tylersmalley](https://discuss.elastic.co/u/tylersmalley)\
**Post date:** [June 23, 2017, 7:29pm UTC](https://discuss.elastic.co/t/upgrade-an-old-elk-to-5-4-2-one/90657/2 "2017-06-23T19:29:40Z")

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Here is a guide to upgrading Elasticsearch: [https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-upgrade.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-upgrade.html)

Here is an article explicitly outlining the migration from 1.x to 2.x: [https://www.elastic.co/blog/key-point-to-be-aware-of-when-upgrading-from-elasticsearch-1-to-2](https://www.elastic.co/blog/key-point-to-be-aware-of-when-upgrading-from-elasticsearch-1-to-2)

You might choose to upgrade one major version at a time. Elasticsearch and Logstash will upgrade from 1.4 to 2.4, then from 2.4 to 5.5.

Keep in mind that as of 5.0, all products on the Elastic stack have aligned versions so each product isn't individually versioned.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 21, 2017, 7:29pm UTC](https://discuss.elastic.co/t/upgrade-an-old-elk-to-5-4-2-one/90657/3 "2017-07-21T19:29:59Z")

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