Failed to install on Raspbian

Working on a Raspberry Pi and trying to install pyside6 and it fails.

(env) pi@RPi3:~ $ uname -a

Linux RPi3 5.10.17-v7+ #1421 SMP Thu May 27 13:59:01 BST 2021 armv7l GNU/Linux

(env) pi@RPi3:~ $ pip install pyside6

Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple

Collecting pyside6

  Could not find a version that satisfies the requirement pyside6 (from versions: )

No matching distribution found for pyside6

(env) pi@RPi3:~ $ 

 QtPy5 installed and works.  QtPy6 does not.