diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 29c90c3..059f7a9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
   scan-and-verify:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with: { python-version: '3.11' }
 
@@ -57,7 +57,7 @@ jobs:
   terraform-security:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install tfsec & tflint & terraform
         run: |
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 9b9d91a..cbe8a5e 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -8,7 +8,7 @@ jobs:
     permissions: { actions: read, contents: read, security-events: write }
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: github/codeql-action/init@v3
         with: { languages: python }
       - uses: github/codeql-action/analyze@v3