# Can't upgrade elasticsearch 5.2.1 to 5.6.5

**URL:** <https://discuss.elastic.co/t/cant-upgrade-elasticsearch-5-2-1-to-5-6-5/115403>\
**Category:** Elasticsearch\
**Created:** [January 13, 2018, 12:40pm UTC](https://discuss.elastic.co/t/cant-upgrade-elasticsearch-5-2-1-to-5-6-5/115403 "2018-01-13T12:40:13Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [January 13, 2018, 1:42pm UTC](https://discuss.elastic.co/t/cant-upgrade-elasticsearch-5-2-1-to-5-6-5/115403/2 "2018-01-13T13:42:47Z")

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Did you upgrade all nodes? What are the other logs?

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