diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 1b8e883..278cdf5 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -10,7 +10,7 @@ jobs:
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Deploy to EC2
         uses: appleboy/ssh-action@v1.0.3
         with:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 18fcea9..a639126 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
@@ -39,7 +39,7 @@ jobs:
       JWT_SECRET: ci_test_secret_key
       JWT_REFRESH_SECRET: ci_refresh_secret
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
@@ -59,7 +59,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [lint]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/deploy-ecs.yml b/.github/workflows/deploy-ecs.yml
index f1e03e3..25b2f14 100644
--- a/.github/workflows/deploy-ecs.yml
+++ b/.github/workflows/deploy-ecs.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Configure AWS credentials
       uses: aws-actions/configure-aws-credentials@v4
diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 2c2c664..5c2ea04 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Setup Dummy Environment Variables
       run: |
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 0f1dd64..ece1494 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -7,7 +7,7 @@ jobs:
   lint-and-format:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup Node
         uses: actions/setup-node@v4
         with: