diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4736acc68..a11e41250 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ on:
   pull_request:
   push:
     branches:
-      - master
+      - main
       - main
     tags:
       - "*.*.*"
diff --git a/docs/conf.py b/docs/conf.py
index 677bb35ca..cf23b3aeb 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -51,8 +51,8 @@
 #
 # source_encoding = 'utf-8-sig'
 
-# The master toctree document.
-master_doc = 'index'
+# The main toctree document.
+main_doc = 'index'
 
 # General information about the project.
 project = 'CMake Python Distributions'
@@ -266,7 +266,7 @@
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-    (master_doc, 'CMakePythonDistributions.tex', 'CMake Python Distributions Documentation',
+    (main_doc, 'CMakePythonDistributions.tex', 'CMake Python Distributions Documentation',
      'Jean-Christophe Fillion-Robin', 'manual'),
 ]
 
@@ -308,7 +308,7 @@
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    (master_doc, 'cmakepythondistributions', 'CMake Python Distributions Documentation',
+    (main_doc, 'cmakepythondistributions', 'CMake Python Distributions Documentation',
      [author], 1)
 ]
 
@@ -323,7 +323,7 @@
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-    (master_doc, 'CMakePythonDistributions', 'CMake Python Distributions Documentation',
+    (main_doc, 'CMakePythonDistributions', 'CMake Python Distributions Documentation',
      author, 'CMakePythonDistributions', 'One line description of project.',
      'Miscellaneous'),
 ]
diff --git a/docs/index.rst b/docs/index.rst
index a81884996..64f1d919c 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1,4 +1,4 @@
-.. CMake Python Distributions documentation master file, created by
+.. CMake Python Distributions documentation main file, created by
    sphinx-quickstart on Wed Nov  9 02:28:46 2016.
    You can adapt this file completely to your liking, but it should at least
    contain the root `toctree` directive.
diff --git a/docs/make_a_release.rst b/docs/make_a_release.rst
index eaaff7a55..d31de20f7 100644
--- a/docs/make_a_release.rst
+++ b/docs/make_a_release.rst
@@ -72,7 +72,7 @@ means that ``echo "Hello"`` should be copied and evaluated in the terminal.
 
   .. code::
 
-    $ git tag --sign -m "cmake-python-distributions $release" $release master
+    $ git tag --sign -m "cmake-python-distributions $release" $release main
 
   .. warning::
 
diff --git a/scripts/utils.sh b/scripts/utils.sh
index 9052cc1f9..5a3e360c8 100644
--- a/scripts/utils.sh
+++ b/scripts/utils.sh
@@ -2,7 +2,7 @@
 
 set -e
 
-# Copied from https://github.com/pypa/manylinux/blob/master/docker/build_scripts/build_utils.sh
+# Copied from https://github.com/pypa/manylinux/blob/main/docker/build_scripts/build_utils.sh
 function check_var {
     if [ -z "$1" ]; then
         echo "required variable not defined"
@@ -10,7 +10,7 @@ function check_var {
     fi
 }
 
-# Copied from https://github.com/pypa/manylinux/blob/master/docker/build_scripts/build_utils.sh
+# Copied from https://github.com/pypa/manylinux/blob/main/docker/build_scripts/build_utils.sh
 function check_sha256sum {
     local fname=$1
     check_var ${fname}