diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 46fcb9c5..4f73c07d 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -42,7 +42,7 @@ As you work...
   and compile the docs with `npm run sassdoc`
 
 [sassdoc]: http://sassdoc.com/
-[changelog]: https://github.com/oddbird/susy/blob/master/CHANGELOG.md
+[changelog]: https://github.com/oddbird/susy/blob/main/CHANGELOG.md
 
 
 **Note:**
@@ -90,7 +90,7 @@ commit your changes, and submit a pull request!
 Pull Requests
 -------------
 
-We use the `master` branch for production-ready code,
+We use the `main` branch for production-ready code,
 and side-branches for everything in-progress
 or up-for-debate.
 
diff --git a/README.md b/README.md
index 15662de5..b76fa1a9 100644
--- a/README.md
+++ b/README.md
@@ -43,9 +43,9 @@ Resources
 
 - [OddBird](http://oddbird.net/) | [@OddBird](http://twitter.com/oddbird/)
 - [Sites using Susy](http://oddbird.net/susy/sites/)
-- [Changelog](https://github.com/oddbird/susy/blob/master/CHANGELOG.md)
-- [Guidelines for contributing](https://github.com/oddbird/susy/blob/master/CONTRIBUTING.md)
-- [BSD3 License](https://github.com/oddbird/susy/blob/master/LICENSE.txt)
+- [Changelog](https://github.com/oddbird/susy/blob/main/CHANGELOG.md)
+- [Guidelines for contributing](https://github.com/oddbird/susy/blob/main/CONTRIBUTING.md)
+- [BSD3 License](https://github.com/oddbird/susy/blob/main/LICENSE.txt)
 
 Third-Party Tools
 -----------------