diff --git a/.github/workflows/cicd-1-pull-request.yaml b/.github/workflows/cicd-1-pull-request.yaml
index 004b11a5..73b85516 100644
--- a/.github/workflows/cicd-1-pull-request.yaml
+++ b/.github/workflows/cicd-1-pull-request.yaml
@@ -27,7 +27,7 @@ jobs:
       docker_file_exists: ${{ steps.check_compose.outputs.docker_file_exists }}
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Set CI/CD variables"
         id: variables
         run: |
diff --git a/.github/workflows/cicd-2-publish.yaml b/.github/workflows/cicd-2-publish.yaml
index 5717ee9b..669ee0ee 100644
--- a/.github/workflows/cicd-2-publish.yaml
+++ b/.github/workflows/cicd-2-publish.yaml
@@ -22,7 +22,7 @@ jobs:
       version: ${{ steps.variables.outputs.version }}
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Set CI/CD variables"
         id: variables
         run: |
@@ -53,7 +53,7 @@ jobs:
     timeout-minutes: 3
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Get the artefacts"
         run: |
           echo "Getting the artefacts created by the build stage ..."
diff --git a/.github/workflows/cicd-3-deploy.yaml b/.github/workflows/cicd-3-deploy.yaml
index 2745b380..1c897f6b 100644
--- a/.github/workflows/cicd-3-deploy.yaml
+++ b/.github/workflows/cicd-3-deploy.yaml
@@ -24,7 +24,7 @@ jobs:
       tag: ${{ steps.variables.outputs.tag }}
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Set CI/CD variables"
         id: variables
         run: |
@@ -56,7 +56,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
   # TODO: More jobs or/and steps here
   # success:
   #   name: "Success notification"
diff --git a/.github/workflows/stage-1-commit.yaml b/.github/workflows/stage-1-commit.yaml
index a97d49ee..cdce7f06 100644
--- a/.github/workflows/stage-1-commit.yaml
+++ b/.github/workflows/stage-1-commit.yaml
@@ -39,7 +39,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0 # Full history is needed to scan all commits
       - name: "Scan secrets"
@@ -50,7 +50,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0 # Full history is needed to compare branches
       - name: "Check file format"
@@ -61,7 +61,7 @@ jobs:
   #   timeout-minutes: 2
   #   steps:
   #     - name: "Checkout code"
-  #       uses: actions/checkout@v4
+  #       uses: actions/checkout@v6
   #       with:
   #         fetch-depth: 0 # Full history is needed to compare branches
   #     - name: "Check Markdown format"
@@ -72,7 +72,7 @@ jobs:
   #   timeout-minutes: 2
   #   steps:
   #     - name: "Checkout code"
-  #       uses: actions/checkout@v4
+  #       uses: actions/checkout@v6
   #       with:
   #         fetch-depth: 0 # Full history is needed to compare branches
   #     - name: "Check English usage"
@@ -83,7 +83,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Lint Terraform"
         uses: ./.github/actions/lint-terraform
   count-lines-of-code:
@@ -95,7 +95,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Count lines of code"
         uses: ./.github/actions/create-lines-of-code-report
         with:
@@ -114,7 +114,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       # - name: "Scan dependencies"
       #   uses: ./.github/actions/scan-dependencies
       #   with:
diff --git a/.github/workflows/stage-2-test.yaml b/.github/workflows/stage-2-test.yaml
index b10c159f..f5986309 100644
--- a/.github/workflows/stage-2-test.yaml
+++ b/.github/workflows/stage-2-test.yaml
@@ -39,7 +39,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run unit test suite"
         run: |
           make test-unit
@@ -52,7 +52,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run linting"
         run: |
           make test-lint
@@ -66,7 +66,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run test coverage check"
         run: |
           make test-coverage
@@ -80,7 +80,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Install Terraform
         uses: hashicorp/setup-terraform@v3
         with:
@@ -99,7 +99,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0 # Full history is needed to improving relevancy of reporting
       - name: "Perform static analysis"
diff --git a/.github/workflows/stage-3-build-images.yaml b/.github/workflows/stage-3-build-images.yaml
index 59ce3286..18058f6a 100644
--- a/.github/workflows/stage-3-build-images.yaml
+++ b/.github/workflows/stage-3-build-images.yaml
@@ -45,13 +45,13 @@ jobs:
       FUNC_NAMES: ${{ steps.get-function-names.outputs.FUNC_NAMES }}
       DOCKER_COMPOSE_DIR: ${{ steps.get-function-names.outputs.DOCKER_COMPOSE_DIR }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 2
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Checkout dtos-devops-templates repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: NHSDigital/dtos-devops-templates
           path: templates
@@ -82,14 +82,14 @@ jobs:
       pr_num_tag: ${{ env.PR_NUM_TAG }}
       short_commit_hash: ${{ env.COMMIT_HASH_TAG }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           fetch-depth: 1
           submodules: 'true'
 
       - name: Checkout dtos-devops-templates repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: NHSDigital/dtos-devops-templates
           path: templates
diff --git a/.github/workflows/stage-3-build.yaml b/.github/workflows/stage-3-build.yaml
index 7192255d..69ccb882 100644
--- a/.github/workflows/stage-3-build.yaml
+++ b/.github/workflows/stage-3-build.yaml
@@ -54,13 +54,13 @@ jobs:
       pr_num_tag: ${{ steps.tags.outputs.pr_num_tag }}
       short_commit_hash: ${{ steps.tags.outputs.short_commit_hash }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           # to allow git diff between HEAD and the previous commit to main branch
           fetch-depth: 2
 
       - name: Checkout dtos-devops-templates repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: NHSDigital/dtos-devops-templates
           path: templates
@@ -116,13 +116,13 @@ jobs:
       matrix:
         function: ${{ fromJSON(needs.containers-to-build.outputs.containers) }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 1
           submodules: true
 
       - name: Checkout dtos-devops-templates
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: NHSDigital/dtos-devops-templates
           path: templates
@@ -202,13 +202,13 @@ jobs:
       contents: read
       packages: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           # to allow git diff between HEAD and the previous commit to main branch
           fetch-depth: 2
 
       - name: Checkout dtos-devops-templates repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: NHSDigital/dtos-devops-templates
           path: templates
diff --git a/.github/workflows/stage-4-acceptance.yaml b/.github/workflows/stage-4-acceptance.yaml
index d554f98a..aca23307 100644
--- a/.github/workflows/stage-4-acceptance.yaml
+++ b/.github/workflows/stage-4-acceptance.yaml
@@ -39,7 +39,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Create infractructure"
         run: |
           echo "Creating infractructure..."
@@ -56,7 +56,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run contract test"
         run: |
           make test-contract
@@ -70,7 +70,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run security test"
         run: |
           make test-security
@@ -84,7 +84,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run UI test"
         run: |
           make test-ui
@@ -98,7 +98,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run UI performance test"
         run: |
           make test-ui-performance
@@ -112,7 +112,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run integration test"
         run: |
           make test-integration
@@ -126,7 +126,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run accessibility test"
         run: |
           make test-accessibility
@@ -140,7 +140,7 @@ jobs:
     timeout-minutes: 10
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Run load tests"
         run: |
           make test-load
@@ -164,7 +164,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: "Tear down environment"
         run: |
           echo "Tearing down environment..."