diff --git a/.github/workflows/actions.yml b/.github/workflows/actions.yml
index 38a53000..62695b49 100644
--- a/.github/workflows/actions.yml
+++ b/.github/workflows/actions.yml
@@ -6,7 +6,7 @@ on:
   push:  # only publishes pushes to the main branch to TestPyPI
     branches:  # any maintenance branch but not tag
       # avoid generic ** as it duplicates builds from temporary branches
-      - "master"
+      - "main"
       - "stable/**"
     tags-ignore:
     - >-
@@ -18,7 +18,7 @@ jobs:
     name: Build Docs
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v2
     - name: Set up Python
       uses: actions/setup-python@v3
       with:
diff --git a/.github/workflows/release-drafter.yml b/.github/workflows/release-drafter.yml
index 7d3004ad..af12e908 100644
--- a/.github/workflows/release-drafter.yml
+++ b/.github/workflows/release-drafter.yml
@@ -4,7 +4,7 @@ on:
   push:
     # branches to consider in the event; optional, defaults to all
     branches:
-      - master
+      - main
       - 'releases/**'
       - 'stable/**'
 
@@ -12,7 +12,7 @@ jobs:
   update_release_draft:
     runs-on: ubuntu-latest
     steps:
-      # Drafts your next Release notes as Pull Requests are merged into "master"
+      # Drafts your next Release notes as Pull Requests are merged into "main"
       - uses: release-drafter/release-drafter@v5
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/README.rst b/README.rst
index 7cf04078..2c72ea1a 100644
--- a/README.rst
+++ b/README.rst
@@ -4,7 +4,7 @@ pytest-html
 pytest-html is a plugin for `pytest <http://pytest.org>`_ that generates a HTML report for test results.
 
 .. image:: https://img.shields.io/badge/license-MPL%202.0-blue.svg
-   :target: https://github.com/pytest-dev/pytest-html/blob/master/LICENSE
+   :target: https://github.com/pytest-dev/pytest-html/blob/main/LICENSE
    :alt: License
 .. image:: https://img.shields.io/pypi/v/pytest-html.svg
    :target: https://pypi.python.org/pypi/pytest-html/
@@ -16,9 +16,9 @@ pytest-html is a plugin for `pytest <http://pytest.org>`_ that generates a HTML
    :target: https://github.com/pytest-dev/pytest-html/actions
    :alt: CI
 .. image:: https://img.shields.io/requires/github/pytest-dev/pytest-html.svg
-   :target: https://requires.io/github/pytest-dev/pytest-html/requirements/?branch=master
+   :target: https://requires.io/github/pytest-dev/pytest-html/requirements/?branch=main
    :alt: Requirements
-.. image:: https://codecov.io/gh/pytest-dev/pytest-html/branch/master/graph/badge.svg?token=Y0myNKkdbi
+.. image:: https://codecov.io/gh/pytest-dev/pytest-html/branch/main/graph/badge.svg?token=Y0myNKkdbi
    :target: https://codecov.io/gh/pytest-dev/pytest-html
    :alt: Codecov
 
diff --git a/docs/development.rst b/docs/development.rst
index 8e0220e1..65add397 100644
--- a/docs/development.rst
+++ b/docs/development.rst
@@ -104,12 +104,12 @@ Releasing a new version
 
 Follow these steps to release a new version of the project:
 
-#.  Update your local master with the upstream master (``git pull --rebase upstream master``)
+#.  Update your local main with the upstream main (``git pull --rebase upstream main``)
 #.  Create a new branch
 #.  Update `the changelog`_ with the new version, today's date, and all changes/new features
 #.  Commit and push the new branch and then create a new pull request
 #.  Wait for tests and reviews and then merge the branch
-#.  Once merged, update your local master again (``git pull --rebase upstream master``)
+#.  Once merged, update your local main again (``git pull --rebase upstream main``)
 #.  Tag the release with the new release version (``git tag v<new tag>``)
 #.  Push the tag (``git push upstream --tags``)
 #. Done. Check `Github Actions`_ for release progress.
diff --git a/docs/index.rst b/docs/index.rst
index fde8d81b..fbb70ca2 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1,4 +1,4 @@
-.. pytest-html documentation master file, created by
+.. pytest-html documentation main file, created by
    sphinx-quickstart on Sun Dec  6 20:48:43 2020.
    You can adapt this file completely to your liking, but it should at least
    contain the root `toctree` directive.
diff --git a/tox.ini b/tox.ini
index 9b279358..82ca1307 100644
--- a/tox.ini
+++ b/tox.ini
@@ -82,7 +82,7 @@ whitelist_externals =
 max-line-length = 88
 exclude = .eggs,.tox
 # rationale here:
-# https://github.com/psf/black/blob/master/docs/the_black_code_style.md#slices
+# https://black.readthedocs.io/en/stable/the_black_code_style/index.html
 extend-ignore = E203
 
 [pytest]