diff --git a/.github/workflows/ada.yml b/.github/workflows/ada.yml
index 7330fa2..2b7ef77 100644
--- a/.github/workflows/ada.yml
+++ b/.github/workflows/ada.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
     - name: Set up GNAT toolchain
       run: >
diff --git a/.github/workflows/boj-build.yml b/.github/workflows/boj-build.yml
index 712beb3..7868fbf 100644
--- a/.github/workflows/boj-build.yml
+++ b/.github/workflows/boj-build.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Trigger BoJ Server (Casket/ssg-mcp)
         run: |
           # Send a secure trigger to boj-server to build this repository
diff --git a/.github/workflows/casket-pages.yml b/.github/workflows/casket-pages.yml
index 1839b7b..55d2a13 100644
--- a/.github/workflows/casket-pages.yml
+++ b/.github/workflows/casket-pages.yml
@@ -20,10 +20,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v4
 
       - name: Checkout casket-ssg
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v4
         with:
           repository: hyperpolymath/casket-ssg
           path: .casket-ssg
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 5658fa3..66c0aed 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -67,7 +67,7 @@ jobs:
         # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
     steps:
     - name: Checkout repository
-      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
     # Add any setup steps before running the `github/codeql-action/init` action.
     # This includes steps like installing compilers or runtimes (`actions/setup-node`
@@ -77,7 +77,7 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@7211b7c8077ea37d8641b6271f6a365a22a5fbfa # v3.32.6
+      uses: github/codeql-action/init@87557b9c84dde89fdd9b10e88954ac2f4248e463 # v3.32.6
       with:
         languages: ${{ matrix.language }}
         build-mode: ${{ matrix.build-mode }}
@@ -106,6 +106,6 @@ jobs:
         exit 1
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@7211b7c8077ea37d8641b6271f6a365a22a5fbfa # v3.32.6
+      uses: github/codeql-action/analyze@87557b9c84dde89fdd9b10e88954ac2f4248e463 # v3.32.6
       with:
         category: "/language:${{matrix.language}}"
diff --git a/.github/workflows/generator-generic-ossf-slsa3-publish.yml b/.github/workflows/generator-generic-ossf-slsa3-publish.yml
index 68b4236..168b030 100644
--- a/.github/workflows/generator-generic-ossf-slsa3-publish.yml
+++ b/.github/workflows/generator-generic-ossf-slsa3-publish.yml
@@ -27,7 +27,7 @@ jobs:
       digests: ${{ steps.hash.outputs.digests }}
 
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       # ========================================================
       #
diff --git a/.github/workflows/scorecard-enforcer.yml b/.github/workflows/scorecard-enforcer.yml
index 75e2385..6c76ba4 100644
--- a/.github/workflows/scorecard-enforcer.yml
+++ b/.github/workflows/scorecard-enforcer.yml
@@ -37,7 +37,7 @@ jobs:
       security-events: write
       id-token: write  # For OIDC
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
 
@@ -49,12 +49,12 @@ jobs:
           publish_results: true
 
       - name: Upload SARIF
-        uses: github/codeql-action/upload-sarif@c6f931105cb2c34c8f901cc885ba1e2e259cf745 # v4
+        uses: github/codeql-action/upload-sarif@87557b9c84dde89fdd9b10e88954ac2f4248e463 # v4
         with:
           sarif_file: results.sarif
 
       - name: Persist SARIF for downstream score-gate job
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: scorecard-results
           path: results.sarif
@@ -67,7 +67,7 @@ jobs:
       contents: read
     steps:
       - name: Download SARIF from scorecard job
-        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v5.0.0
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v5.0.0
         with:
           name: scorecard-results
 
@@ -89,7 +89,7 @@ jobs:
   check-critical:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Check SECURITY.md exists
         run: |
diff --git a/.github/workflows/workflow-linter.yml b/.github/workflows/workflow-linter.yml
index 02b2e76..1e594b4 100644
--- a/.github/workflows/workflow-linter.yml
+++ b/.github/workflows/workflow-linter.yml
@@ -16,7 +16,7 @@ jobs:
   lint-workflows:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v4
 
       - name: Check SPDX headers
         run: |