diff --git a/.github/workflows/code-scanning.yml b/.github/workflows/code-scanning.yml
index 5bc6840e..b8aad8b0 100644
--- a/.github/workflows/code-scanning.yml
+++ b/.github/workflows/code-scanning.yml
@@ -19,7 +19,7 @@ jobs:
           - ubuntu-latest
     steps:
       - name: Checkout source code
-        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
         with:
           token: '${{ secrets.GITHUB_TOKEN }}'
           fetch-depth: 0
@@ -50,7 +50,7 @@ jobs:
       security-events: write
     steps:
       - name: Clone repo
-        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
         with:
           token: '${{ secrets.GITHUB_TOKEN }}'
           fetch-depth: 0
@@ -72,7 +72,7 @@ jobs:
       security-events: write
     steps:
       - name: Checkout repo
-        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
         with:
           token: '${{ secrets.GITHUB_TOKEN }}'
           fetch-depth: 0
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 63097f24..fc6f7fd7 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -9,7 +9,7 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+    - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       with:
         ref: ${{ github.event.pull_request.head.ref }}
 
diff --git a/.github/workflows/format-code.yml b/.github/workflows/format-code.yml
index ed8d8161..0ad90b17 100644
--- a/.github/workflows/format-code.yml
+++ b/.github/workflows/format-code.yml
@@ -11,7 +11,7 @@ jobs:
       contents: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       - uses: ministryofjustice/github-actions/code-formatter@7c689fe2de15e1692f5cceceb132919ab854081c # v14
         with:
             ignore-files: "README.md"
diff --git a/.github/workflows/go-terratest.yml b/.github/workflows/go-terratest.yml
index 7681b6c0..822273e7 100644
--- a/.github/workflows/go-terratest.yml
+++ b/.github/workflows/go-terratest.yml
@@ -14,7 +14,7 @@ jobs:
     name: Run Go Unit Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       - uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe # v4.1.0
         with:
           go-version: 1.18
diff --git a/.github/workflows/scorecards.yml b/.github/workflows/scorecards.yml
index 69ce2a0e..70a4e864 100644
--- a/.github/workflows/scorecards.yml
+++ b/.github/workflows/scorecards.yml
@@ -32,7 +32,7 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/terraform-static-analysis.yml b/.github/workflows/terraform-static-analysis.yml
index 90d7b108..c873249e 100644
--- a/.github/workflows/terraform-static-analysis.yml
+++ b/.github/workflows/terraform-static-analysis.yml
@@ -21,7 +21,7 @@ jobs:
     if: github.event_name != 'workflow_dispatch'
     steps:
     - name: Checkout
-      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       with:
         fetch-depth: 0
     - name: Run Analysis
@@ -41,7 +41,7 @@ jobs:
     if: github.event_name == 'workflow_dispatch'
     steps:
     - name: Checkout
-      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
       with:
         fetch-depth: 0
     - name: Run Analysis