diff --git a/.github/workflows/firebase-hosting-merge.yml b/.github/workflows/firebase-hosting-merge.yml
index 1f574149..40f3f5a9 100644
--- a/.github/workflows/firebase-hosting-merge.yml
+++ b/.github/workflows/firebase-hosting-merge.yml
@@ -10,7 +10,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version: 24.14.1
@@ -60,7 +60,7 @@ jobs:
     needs: [build]
     environment: 'dev'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Download all workflow run artifacts
         uses: actions/download-artifact@v4
       - name: Copy favicon
@@ -77,7 +77,7 @@ jobs:
     needs: [deploy_dev]
     environment: 'staging'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Download all workflow run artifacts
         uses: actions/download-artifact@v4
       - name: Copy favicon
@@ -94,7 +94,7 @@ jobs:
     needs: [deploy_dev, deploy_staging]
     environment: 'prod'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Download all workflow run artifacts
         uses: actions/download-artifact@v4
       - name: Copy favicon
diff --git a/.github/workflows/firebase-hosting-pull-request.yml b/.github/workflows/firebase-hosting-pull-request.yml
index 6196e080..1757e318 100644
--- a/.github/workflows/firebase-hosting-pull-request.yml
+++ b/.github/workflows/firebase-hosting-pull-request.yml
@@ -8,7 +8,7 @@ jobs:
     if: '${{ github.event.pull_request.head.repo.full_name == github.repository }}'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v5
         with:
           node-version: 24.14.1