diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index d8bfb3c..47ec0cf 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -3,7 +3,7 @@ on:
   push:
     branches:
       - '+([0-9])?(.{+([0-9]),x}).x'
-      - 'master'
+      - 'main'
       - 'next'
       - 'next-major'
       - 'beta'
@@ -48,7 +48,7 @@ jobs:
     runs-on: ubuntu-latest
     if:
       ${{ github.repository == 'testing-library/preact-testing-library' &&
-      contains('refs/heads/master,refs/heads/beta,refs/heads/next,refs/heads/alpha', github.ref) &&
+      contains('refs/heads/main,refs/heads/beta,refs/heads/next,refs/heads/alpha', github.ref) &&
       github.event_name == 'push' }}
     steps:
       - name: 🛑 Cancel Previous Runs
@@ -79,7 +79,7 @@ jobs:
           branches: |
             [
               '+([0-9])?(.{+([0-9]),x}).x',
-              'master',
+              'main',
               'next',
               'next-major',
               {name: 'beta', prerelease: true},
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 74acdd4..ca73614 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -11,20 +11,19 @@ to an Open Source Project on GitHub][egghead]
 2.  Run `npm run setup -s` to install dependencies and run validation
 3.  Create a branch for your PR with `git checkout -b pr/your-branch-name`
 
-> Tip: Keep your `master` branch pointing at the original repository and make pull requests from
+> Tip: Keep your `main` branch pointing at the original repository and make pull requests from
 > branches on your fork. To do this, run:
 >
 > ```
 > git remote add upstream https://github.com/testing-library/preact-testing-library.git
 > git fetch upstream
-> git branch --set-upstream-to=upstream/master master
+> git branch --set-upstream-to=upstream/main main
 > ```
 >
 > This will add the original repository as a "remote" called "upstream," Then fetch the git
-> information from that remote, then set your local `master` branch to use the upstream master
-> branch whenever you run `git pull`. Then you can make all of your pull request branches based on
-> this `master` branch. Whenever you want to update your version of `master`, do a regular
-> `git pull`.
+> information from that remote, then set your local `main` branch to use the upstream main branch
+> whenever you run `git pull`. Then you can make all of your pull request branches based on this
+> `main` branch. Whenever you want to update your version of `main`, do a regular `git pull`.
 
 ## Committing and Pushing changes
 
diff --git a/README.md b/README.md
index bedc09b..23cc1fa 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
     height="80"
     width="80"
     alt="poodle"
-    src="https://raw.githubusercontent.com/testing-library/preact-testing-library/master/other/poodle.png"
+    src="https://raw.githubusercontent.com/testing-library/preact-testing-library/main/other/poodle.png"
   />
 </a>
 
@@ -145,7 +145,7 @@ kind welcome!
 [version-badge]: https://img.shields.io/npm/v/@testing-library/preact
 [downloads-badge]: https://img.shields.io/npm/dw/@testing-library/preact
 [slack]: https://preact-slack.now.sh
-[license]: https://github.com/testing-library/preact-testing-library/blob/master/LICENSE
+[license]: https://github.com/testing-library/preact-testing-library/blob/main/LICENSE
 [license-badge]: https://img.shields.io/github/license/testing-library/preact-testing-library?color=b
 [emojis]: https://github.com/all-contributors/all-contributors#emoji-key
 [all-contributors]: https://github.com/all-contributors/all-contributors
@@ -159,7 +159,7 @@ kind welcome!
 [prs-badge]: https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square
 [prs]: http://makeapullrequest.com
 [coc-badge]: https://img.shields.io/badge/code%20of-conduct-ff69b4.svg?style=flat-square
-[coc]: https://github.com/testing-library/preact-testing-library/blob/master/CODE_OF_CONDUCT.md
+[coc]: https://github.com/testing-library/preact-testing-library/blob/main/CODE_OF_CONDUCT.md
 [preact-slack]: https://preact-slack.now.sh/
 [preact-slack-badge]: https://preact-slack.now.sh/badge.svg
 [commitzen]: http://commitizen.github.io/cz-cli/