# How to Upgrade The Tomcat Container for Confluence

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Please note that these changes are not supported and this article is provided for informational purposes only. EAR/WAR support was depreciated in Confluence 5.7. The only supported application server is the version of Tomcat that is bundled with each release.

Due to security concerns or company policy, the Tomcat container housing Confluence needs to be upgraded.  This guide explains how to upgrade Tomcat.

## Resolution

Make a Backup of the <confluence install directory> before proceeding

1. Shutdown Confluence
3. Copy the contents of the bin folder to your <install-directory>/bin folder, replacing existing files
4. Copy the contents of the lib folder to your <install-directory>/lib folder, replacing existing files