# Deprecating Sass in themes — Shopify developer changelog --- ## Deprecating Sass in themes The use of `.scss` files within compiled Shopify themes is being officially deprecated. We'll be transitioning to only using `.css` files within all free and paid themes available on the Shopify Theme Store. Support for Sass won't be removed in the short term and themes using `.scss` files will continue to function. However, we strongly recommend that developers compile their `.scss` files to `.css` locally, or use only `.css` files. New themes might be blocked from using `.scss` files in the future. To learn more about this change and the alternatives available for developers who want to continue using Sass in their development workflow, refer to the [Shopify Partners Blog](https://www.shopify.com/partners/blog/deprecating-sass). *Published: November 04, 2020* Tags: Themes, Deprecation Announcement Link: https://shopify.dev/changelog/deprecating-sass-in-themes ---