Failing to build scss

Hi I am getting this error on verison 0.81.0 extended

avni@localhost my_website=>> hugo server
Start building sites …
ERROR 2021/04/05 01:18:40 TOCSS: failed to transform “style/theme.sass” (text/x-sass). Check your Hugo installation; you need the extended version to build SCSS/SASS.
Built in 43 ms
Error: Error building site: TOCSS: failed to transform “sass/styles.sass” (text/x-sass). Check your Hugo installation; you need the extended version to build SCSS/SASS.
avni@localhost my_website=>> hugo version
Hugo Static Site Generator v0.81.0-DEV-EE9C136 linux/amd64 BuildDate: 2021-01-23T05:30:16Z

I had installed using
sudo snap install hugo --channel=edge
and the above version got installed.

How to resolve this issue?

sudo snap remove hugo 
sudo snap install hugo --channel=extended/edge