diff --git a/.github/workflows/code-quality.yml b/.github/workflows/code-quality.yml
index 50caf773..54c324a0 100644
--- a/.github/workflows/code-quality.yml
+++ b/.github/workflows/code-quality.yml
@@ -4,6 +4,7 @@ on:
   pull_request:
   push:
     branches:
+      - main
       - master
 
 # Cancels all previous workflow runs for the same branch that have not yet completed.
@@ -40,7 +41,7 @@ jobs:
         if: steps.check_composer_file.outputs.files_exists == 'true'
         uses: "ramsey/composer-install@v2"
         env:
-          COMPOSER_ROOT_VERSION: 'dev-master'
+          COMPOSER_ROOT_VERSION: 'dev-main'
 
       - name: Check existence of vendor/bin/parallel-lint file
         id: check_linter_file
@@ -79,7 +80,7 @@ jobs:
         if: steps.check_files.outputs.files_exists == 'true'
         uses: "ramsey/composer-install@v2"
         env:
-          COMPOSER_ROOT_VERSION: 'dev-master'
+          COMPOSER_ROOT_VERSION: 'dev-main'
 
       - name: Check existence of vendor/bin/phpcs file
         id: check_phpcs_binary_file
diff --git a/.github/workflows/regenerate-readme.yml b/.github/workflows/regenerate-readme.yml
index cb5eec26..9469b049 100644
--- a/.github/workflows/regenerate-readme.yml
+++ b/.github/workflows/regenerate-readme.yml
@@ -4,6 +4,7 @@ on:
   workflow_dispatch:
   push:
     branches:
+      - main
       - master
     paths-ignore:
       - 'features/**'
@@ -43,7 +44,7 @@ jobs:
         if: steps.check_composer_file.outputs.files_exists == 'true'
         uses: "ramsey/composer-install@v2"
         env:
-          COMPOSER_ROOT_VERSION: 'dev-master'
+          COMPOSER_ROOT_VERSION: 'dev-main'
 
       - name: Configure git user
         run: |
@@ -95,7 +96,7 @@ jobs:
         uses: repo-sync/pull-request@v2
         with:
           source_branch: regenerate-readme
-          destination_branch: master
+          destination_branch: main
           github_token: ${{ secrets.GITHUB_TOKEN }}
           pr_title: Regenerate README file
           pr_body: "**This is an automated pull-request**\n\nRefreshes the `README.md` file with the latest changes to the docblocks in the source code."
diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 33f642dc..167af0ff 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -4,6 +4,7 @@ on:
   pull_request:
   push:
     branches:
+      - main
       - master
 
 # Cancels all previous workflow runs for the same branch that have not yet completed.
@@ -46,7 +47,7 @@ jobs:
         if: steps.check_files.outputs.files_exists == 'true'
         uses: "ramsey/composer-install@v2"
         env:
-          COMPOSER_ROOT_VERSION: 'dev-master'
+          COMPOSER_ROOT_VERSION: 'dev-main'
 
       - name: Setup problem matcher to provide annotations for PHPUnit
         if: steps.check_files.outputs.files_exists == 'true'
@@ -134,7 +135,7 @@ jobs:
         if: steps.check_files.outputs.files_exists == 'true'
         uses: "ramsey/composer-install@v2"
         env:
-          COMPOSER_ROOT_VERSION: 'dev-master'
+          COMPOSER_ROOT_VERSION: 'dev-main'
 
       - name: Start MySQL server
         if: steps.check_files.outputs.files_exists == 'true'