# Elasticsearch 8.15.3 and Connectors 9.0.0 are incompatible: major versions are different

**URL:** <https://discuss.elastic.co/t/elasticsearch-8-15-3-and-connectors-9-0-0-are-incompatible-major-versions-are-different/371396>\
**Category:** Elasticsearch\
**Created:** [December 3, 2024, 2:54pm UTC](https://discuss.elastic.co/t/elasticsearch-8-15-3-and-connectors-9-0-0-are-incompatible-major-versions-are-different/371396 "2024-12-03T14:54:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dev8100](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@dev8100](https://discuss.elastic.co/u/dev8100)\
**Post date:** [December 3, 2024, 2:54pm UTC](https://discuss.elastic.co/t/elasticsearch-8-15-3-and-connectors-9-0-0-are-incompatible-major-versions-are-different/371396/1 "2024-12-03T14:54:30Z")

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I'm running into the issue below. I'm really not clear on how to modify the version of the connector service since I haven't built one before and can really use some help

[FMWK][14:22:30][INFO] Running connector service version 9.0.0  
[FMWK][14:22:30][INFO] Loading config from /connectors/../config.yml  
[FMWK][14:22:30][INFO] Running preflight checks  
[FMWK][14:22:30][INFO] Waiting for Elasticsearch at  
[FMWK][14:22:30][CRITICAL] Elasticsearch 8.15.3 and Connectors 9.0.0 are incompatible: major versions are different  
[FMWK][14:22:30][INFO] Bye

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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:** [December 3, 2024, 8:48pm UTC](https://discuss.elastic.co/t/elasticsearch-8-15-3-and-connectors-9-0-0-are-incompatible-major-versions-are-different/371396/2 "2024-12-03T20:48:18Z")

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What exactly are you doing or trying to do?

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<div class="post-metadata">

**Author:** ![dev8100](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@dev8100](https://discuss.elastic.co/u/dev8100)\
**Post date:** [December 3, 2024, 9:14pm UTC](https://discuss.elastic.co/t/elasticsearch-8-15-3-and-connectors-9-0-0-are-incompatible-major-versions-are-different/371396/3 "2024-12-03T21:14:33Z")

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It's solved. I had just had to clone a different tag branch for 8.15.3 and it worked. Thanks for replying.