diff --git a/.github/workflows/build-docker-task.yml b/.github/workflows/build-docker-task.yml
index f40677b3..64640089 100644
--- a/.github/workflows/build-docker-task.yml
+++ b/.github/workflows/build-docker-task.yml
@@ -46,7 +46,7 @@ jobs:
     steps:
 
       - name: Checkout step
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           ref: ${{ inputs.ref }}
 
diff --git a/.github/workflows/build-dockerreadme-task.yml b/.github/workflows/build-dockerreadme-task.yml
index d17c96f3..a0adf227 100644
--- a/.github/workflows/build-dockerreadme-task.yml
+++ b/.github/workflows/build-dockerreadme-task.yml
@@ -28,7 +28,7 @@ jobs:
       # `workflow_dispatch` from `develop` would otherwise render the Hub
       # README from develop's `Docker/README.m4` instead of main's.
       - name: Checkout step
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           ref: ${{ inputs.branch }}
 
diff --git a/.github/workflows/build-executable-task.yml b/.github/workflows/build-executable-task.yml
index e9d36a81..50f5d316 100644
--- a/.github/workflows/build-executable-task.yml
+++ b/.github/workflows/build-executable-task.yml
@@ -51,7 +51,7 @@ jobs:
           dotnet-version: 10.x
 
       - name: Checkout code step
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           ref: ${{ inputs.ref }}
 
diff --git a/.github/workflows/build-release-task.yml b/.github/workflows/build-release-task.yml
index 9d3a1182..e79ed82a 100644
--- a/.github/workflows/build-release-task.yml
+++ b/.github/workflows/build-release-task.yml
@@ -99,7 +99,7 @@ jobs:
       # Check out the exact built commit (NBGV `GitCommitId`), so the uploaded
       # release files match the tag even if the branch advances mid-run.
       - name: Checkout code step
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           ref: ${{ needs.get-version.outputs.GitCommitId }}
 
diff --git a/.github/workflows/get-version-task.yml b/.github/workflows/get-version-task.yml
index 44d44eca..500f11a5 100644
--- a/.github/workflows/get-version-task.yml
+++ b/.github/workflows/get-version-task.yml
@@ -47,7 +47,7 @@ jobs:
           dotnet-version: 10.x
 
       - name: Checkout code step
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           ref: ${{ inputs.ref }}
           fetch-depth: 0
diff --git a/.github/workflows/test-pull-request.yml b/.github/workflows/test-pull-request.yml
index 7de39dde..9621fcdb 100644
--- a/.github/workflows/test-pull-request.yml
+++ b/.github/workflows/test-pull-request.yml
@@ -61,7 +61,7 @@ jobs:
           dotnet-version: 10.x
 
       - name: Checkout code step
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Check code style step
         run: |