diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7b26137..eb97c56 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,7 +2,7 @@ name: continuous-integration
 
 on:
   push:
-    branches: [master]
+    branches: [main]
   pull_request:
 
 jobs:
diff --git a/README.md b/README.md
index 9c2a0ed..b579f08 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 
 **A proof extension for Sphinx**.
 
-This package contains a [Sphinx](http://www.sphinx-doc.org/en/master/) extension
+This package contains a [Sphinx](http://www.sphinx-doc.org/) extension
 for producing proof, theorem, axiom, lemma, definition, criterion, remark, conjecture,
 corollary, algorithm, example, property, observation, proposition and assumption directives.
 
@@ -40,7 +40,7 @@ We welcome all contributions! See the [EBP Contributing Guide](https://executabl
 
 [rtd-badge]: https://readthedocs.org/projects/sphinx-proof/badge/?version=latest
 [rtd-link]: https://sphinx-proof.readthedocs.io/en/latest/?badge=latest
-[github-ci]: https://github.com/executablebooks/sphinx-proof/workflows/continuous-integration/badge.svg?branch=master
+[github-ci]: https://github.com/executablebooks/sphinx-proof/workflows/continuous-integration/badge.svg?branch=main
 [github-link]: https://github.com/executablebooks/sphinx-proof
-[codecov-badge]: https://codecov.io/gh/executablebooks/sphinx-proof/branch/master/graph/badge.svg
+[codecov-badge]: https://codecov.io/gh/executablebooks/sphinx-proof/branch/main/graph/badge.svg
 [codecov-link]: https://codecov.io/gh/executablebooks/sphinx-proof
diff --git a/docs/source/index.md b/docs/source/index.md
index 21ebe67..74dff27 100644
--- a/docs/source/index.md
+++ b/docs/source/index.md
@@ -15,7 +15,7 @@ zreferences
 
 **A proof extension for Sphinx**.
 
-This package contains a [Sphinx](http://www.sphinx-doc.org/en/master/) extension
+This package contains a [Sphinx](http://www.sphinx-doc.org/) extension
 for producing proof, theorem, axiom, lemma, definition, criterion, remark, conjecture,
 corollary, algorithm, example, property, observation, proposition and assumption directives.
 
@@ -61,7 +61,7 @@ you may then build using `make html` and the extension will be used by your `Sph
 
 [rtd-badge]: https://readthedocs.org/projects/sphinx-proof/badge/?version=latest
 [rtd-link]: https://sphinx-proof.readthedocs.io/en/latest/?badge=latest
-[github-ci]: https://github.com/executablebooks/sphinx-proof/workflows/continuous-integration/badge.svg?branch=master
+[github-ci]: https://github.com/executablebooks/sphinx-proof/workflows/continuous-integration/badge.svg?branch=main
 [github-link]: https://github.com/executablebooks/sphinx-proof
-[codecov-badge]: https://codecov.io/gh/executablebooks/sphinx-proof/branch/master/graph/badge.svg
+[codecov-badge]: https://codecov.io/gh/executablebooks/sphinx-proof/branch/main/graph/badge.svg
 [codecov-link]: https://codecov.io/gh/executablebooks/sphinx-proof
diff --git a/docs/source/install.md b/docs/source/install.md
index 37af7a2..fbb6197 100644
--- a/docs/source/install.md
+++ b/docs/source/install.md
@@ -26,6 +26,6 @@ To install `sphinx-proof` for package development:
 ```bash
 git clone https://github.com/executablebooks/sphinx-proof
 cd sphinx-proof
-git checkout master
+git checkout main
 pip install -e .[all]
 ```