diff --git a/.github/workflows/cla.yml b/.github/workflows/cla.yml
index 5fe2e3fb92d..61e4867a2c3 100644
--- a/.github/workflows/cla.yml
+++ b/.github/workflows/cla.yml
@@ -10,7 +10,7 @@ jobs:
       issues: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index b13d2a07579..501e9d1f1b4 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -24,7 +24,7 @@ jobs:
       GITHUB_SHA: ${{ github.sha }}
       DEPLOYED_URL: https://ci-builds.cesium.com/cesium/${{ github.ref_name }}/
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
diff --git a/.github/workflows/dev.yml b/.github/workflows/dev.yml
index 1f54f80914d..96d7985ffe9 100644
--- a/.github/workflows/dev.yml
+++ b/.github/workflows/dev.yml
@@ -11,7 +11,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
@@ -32,7 +32,7 @@ jobs:
       AWS_REGION: us-east-1
       BRANCH: ${{ github.ref_name }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
@@ -49,7 +49,7 @@ jobs:
   release-tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
@@ -65,7 +65,7 @@ jobs:
   node-20:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 20
         uses: actions/setup-node@v6
         with:
diff --git a/.github/workflows/prod.yml b/.github/workflows/prod.yml
index abc62b7c734..11c0b74e1f8 100644
--- a/.github/workflows/prod.yml
+++ b/.github/workflows/prod.yml
@@ -7,7 +7,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
@@ -32,7 +32,7 @@ jobs:
       GITHUB_REPO: ${{ github.repository }}
       GITHUB_SHA: ${{ github.sha }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
diff --git a/.github/workflows/sandcastle-dev.yml b/.github/workflows/sandcastle-dev.yml
index 7455552080b..654bebd4499 100644
--- a/.github/workflows/sandcastle-dev.yml
+++ b/.github/workflows/sandcastle-dev.yml
@@ -16,7 +16,7 @@ jobs:
       GITHUB_REPO: ${{ github.repository }}
       GITHUB_SHA: ${{ github.sha }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with: