diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 95a677f..8249e83 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Terraform
         uses: hashicorp/setup-terraform@v3
@@ -34,7 +34,7 @@ jobs:
     needs: terraform
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Terraform
         uses: hashicorp/setup-terraform@v3
@@ -60,7 +60,7 @@ jobs:
     needs: terraform
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Terraform
         uses: hashicorp/setup-terraform@v3
@@ -88,7 +88,7 @@ jobs:
       - tflint
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Terraform
         uses: hashicorp/setup-terraform@v3
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 6e0dd13..9aba00e 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.ref }}
 
diff --git a/.github/workflows/labels.yml b/.github/workflows/labels.yml
index eea4511..b871fa8 100644
--- a/.github/workflows/labels.yml
+++ b/.github/workflows/labels.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Sync labels
         uses: crazy-max/ghaction-github-labeler@v5