diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 93cdfb3..7466416 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -34,7 +34,7 @@ jobs:
       matrix:
         language: ["csharp", "actions"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4
         with:
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index a052eb9..f7661a4 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -28,7 +28,7 @@ jobs:
       id-token: write
       contents: read
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
diff --git a/.github/workflows/scan.yml b/.github/workflows/scan.yml
index 8b4269f..c64465a 100644
--- a/.github/workflows/scan.yml
+++ b/.github/workflows/scan.yml
@@ -15,7 +15,7 @@ jobs:
     permissions:
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
diff --git a/.github/workflows/sonar.yml b/.github/workflows/sonar.yml
index d22532e..7d510f3 100644
--- a/.github/workflows/sonar.yml
+++ b/.github/workflows/sonar.yml
@@ -27,7 +27,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Setup .NET
diff --git a/.github/workflows/terraform.yml b/.github/workflows/terraform.yml
index 8f58229..601a4f5 100644
--- a/.github/workflows/terraform.yml
+++ b/.github/workflows/terraform.yml
@@ -24,7 +24,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup TFLint
         uses: terraform-linters/setup-tflint@v6
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2f5420c..df25432 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,7 @@ jobs:
       matrix:
         os: ["ubuntu-latest"]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup .NET
         uses: actions/setup-dotnet@v5
         with: