# 20011: Invalid TLS version

Log Level: ERROR

## Description

### Invalid TLS version

The request was rejected because it was not correctly configured to use TLSv1.2. All new accounts are [required to use TLSv1.2 with supported ciphers suites](https://support.twilio.com/hc/en-us/articles/360007724794).

### Possible solutions

* Reconfigure request to use a supported cipher suite for TLSv1.2
* Review these [tips for upgrading your environment to TLSv1.2](https://support.twilio.com/hc/en-us/articles/360006751753)