diff --git a/.github/workflows/ai-pr-review.yml b/.github/workflows/ai-pr-review.yml
index c3fa500..04a7534 100644
--- a/.github/workflows/ai-pr-review.yml
+++ b/.github/workflows/ai-pr-review.yml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 159919b..6b1df75 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
     name: Build & Unit Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-dotnet@v4
         with:
@@ -84,7 +84,7 @@ jobs:
           --health-timeout 5s
           --health-retries 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-dotnet@v4
         with:
@@ -126,7 +126,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-dotnet@v4
         with:
@@ -166,7 +166,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
@@ -188,7 +188,7 @@ jobs:
     needs: [build, integration-tests]
     if: always()
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/download-artifact@v4
         with:
diff --git a/.github/workflows/copilot-setup-steps.yml b/.github/workflows/copilot-setup-steps.yml
index 0ed0754..9a32f4e 100644
--- a/.github/workflows/copilot-setup-steps.yml
+++ b/.github/workflows/copilot-setup-steps.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup .NET SDK
         uses: actions/setup-dotnet@v4
diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 787c7c1..58f8ecb 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -37,7 +37,7 @@ jobs:
     name: Code Format Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-dotnet@v4
         with:
@@ -52,7 +52,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.event_name == 'pull_request'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/dependency-review-action@v4
         with:
           fail-on-severity: high
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 40b8896..7431620 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,7 +18,7 @@ jobs:
     name: Run All Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-dotnet@v4
         with:
@@ -50,7 +50,7 @@ jobs:
       image-tags: ${{ steps.meta.outputs.tags }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Extract version from tag
         id: version
@@ -101,7 +101,7 @@ jobs:
       packages: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
@@ -145,7 +145,7 @@ jobs:
       packages: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install Helm
         uses: azure/setup-helm@v4
@@ -190,7 +190,7 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0