diff --git a/.github/workflows/add-review-labels.yml b/.github/workflows/add-review-labels.yml
index 12f830e99ec5..cea99864d3de 100644
--- a/.github/workflows/add-review-labels.yml
+++ b/.github/workflows/add-review-labels.yml
@@ -4,7 +4,7 @@ jobs:
   reviewer:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@main
       - uses: ./actions/add-review-labels
         with:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 97328cf5f0ee..68b051ff4e21 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,7 +2,7 @@ name: CI
 on:
   pull_request:
     branches:
-      - master
+      - main
 jobs:
   dedupe:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index e49ae492210a..8f06015792a2 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -1,10 +1,10 @@
-name: "Code scanning - action"
+name: 'Code scanning - action'
 
 on:
   push:
-    branches: [master]
+    branches: [main]
   pull_request:
-    branches: [master]
+    branches: [main]
   schedule:
     - cron: '0 12 * * 1'
 
@@ -13,23 +13,23 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-      with:
-        # We must fetch at least the immediate parents so that if this is
-        # a pull request then we can checkout the head.
-        fetch-depth: 2
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        with:
+          # We must fetch at least the immediate parents so that if this is
+          # a pull request then we can checkout the head.
+          fetch-depth: 2
 
-    # If this run was triggered by a pull request event, then checkout
-    # the head of the pull request instead of the merge commit.
-    - run: git checkout HEAD^2
-      if: ${{ github.event_name == 'pull_request' }}
+      # If this run was triggered by a pull request event, then checkout
+      # the head of the pull request instead of the merge commit.
+      - run: git checkout HEAD^2
+        if: ${{ github.event_name == 'pull_request' }}
 
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: javascript
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v1
+        with:
+          languages: javascript
 
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v1
diff --git a/.github/workflows/deploy-react-storybook.yml b/.github/workflows/deploy-react-storybook.yml
index b62e078207d0..2ee669511c0f 100644
--- a/.github/workflows/deploy-react-storybook.yml
+++ b/.github/workflows/deploy-react-storybook.yml
@@ -16,7 +16,7 @@ jobs:
   build:
     runs-on: macOS-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@main
       - name: Use Node.js 14.x
         uses: actions/setup-node@v2.1.5
         with:
diff --git a/.github/workflows/deploy-vanilla-devenv.yml b/.github/workflows/deploy-vanilla-devenv.yml
index 75031e31fba2..b7478c5b9b14 100644
--- a/.github/workflows/deploy-vanilla-devenv.yml
+++ b/.github/workflows/deploy-vanilla-devenv.yml
@@ -15,7 +15,7 @@ jobs:
   build:
     runs-on: macOS-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@main
       - name: Use Node.js 14.x
         uses: actions/setup-node@v2.1.5
         with:
diff --git a/.github/workflows/issue-triage.yml b/.github/workflows/issue-triage.yml
index 366e9fa93350..67fb5f3674a3 100644
--- a/.github/workflows/issue-triage.yml
+++ b/.github/workflows/issue-triage.yml
@@ -8,7 +8,7 @@ jobs:
   comment:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@main
       - uses: ./actions/issues
         with:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/nightly-release.yml b/.github/workflows/nightly-release.yml
index ce00f5c0555d..21453eaedd2b 100644
--- a/.github/workflows/nightly-release.yml
+++ b/.github/workflows/nightly-release.yml
@@ -9,7 +9,7 @@ jobs:
   release:
     runs-on: macOS-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@main
       - name: Use Node.js 14.x
         uses: actions/setup-node@v2.1.5
         with:
diff --git a/.github/workflows/sync-generated-files.yml b/.github/workflows/sync-generated-files.yml
index d8b909e58a59..05200166c7af 100644
--- a/.github/workflows/sync-generated-files.yml
+++ b/.github/workflows/sync-generated-files.yml
@@ -2,7 +2,7 @@ name: Sync generated files
 on:
   push:
     branches:
-      - master
+      - main
 jobs:
   release:
     runs-on: macOS-latest
@@ -31,7 +31,7 @@ jobs:
             git config --global user.name "carbon-bot"
 
             git remote set-url origin "https://x-access-token:$GITHUB_TOKEN@github.com/carbon-design-system/carbon.git"
-            git checkout master
+            git checkout main
             git add -A
             git commit -m "chore(project): sync generated files"
             git push