diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index f474459..dad0c30 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.repository == 'NHSDigital/mesh_validate_auth_header'
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9aaa44b..502cead 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -12,7 +12,7 @@ jobs:
       RELEASE_VERSION: ${{ steps.release_version.outputs.RELEASE_VERSION }}
       RELEASE_URL: ${{ steps.upload_url.outputs.RELEASE_URL }}
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - run: echo RELEASE_VERSION="$(grep 'version:' pubspec.yaml | sed -En 's/^version:\s(.*)\+.*$/\1/p')+${{github.run_number}}" >> $GITHUB_ENV
       - uses: actions/create-release@0cb9c9b65d5d1901c1f53e5e66eaf4afd303e70e # v1.1.4
         id: create_release
@@ -32,7 +32,7 @@ jobs:
     if: github.repository == 'NHSDigital/mesh_validate_auth_header'
     needs: create_release
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
       - uses: subosito/flutter-action@1a449444c387b1966244ae4d4f8c696479add0b2 # v2.23.0
@@ -73,7 +73,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.repository == 'NHSDigital/mesh_validate_auth_header'
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
 
@@ -98,7 +98,7 @@ jobs:
     if: github.repository == 'NHSDigital/mesh_validate_auth_header'
     needs: create_release
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - uses: subosito/flutter-action@1a449444c387b1966244ae4d4f8c696479add0b2 # v2.23.0
         with: