diff --git a/.github/workflows/boj-build.yml b/.github/workflows/boj-build.yml
index 410dc3c..ed543eb 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@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@v6
       - 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 15e3e74..51367fb 100644
--- a/.github/workflows/casket-pages.yml
+++ b/.github/workflows/casket-pages.yml
@@ -35,7 +35,7 @@ jobs:
           cabal-version: '3.10'
 
       - name: Cache Cabal
-        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v4
+        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v4
         with:
           path: |
             ~/.cabal/packages
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 9262543..300f8ad 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -30,12 +30,12 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@b1bff81932f5cdfc8695c7752dcee935dcd061c8 # v3
+        uses: github/codeql-action/init@c6f931105cb2c34c8f901cc885ba1e2e259cf745 # v3
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@b1bff81932f5cdfc8695c7752dcee935dcd061c8 # v3
+        uses: github/codeql-action/analyze@c6f931105cb2c34c8f901cc885ba1e2e259cf745 # v3
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/scorecard-enforcer.yml b/.github/workflows/scorecard-enforcer.yml
index 154f59d..e686bf7 100644
--- a/.github/workflows/scorecard-enforcer.yml
+++ b/.github/workflows/scorecard-enforcer.yml
@@ -31,7 +31,7 @@ jobs:
           publish_results: true
 
       - name: Upload SARIF
-        uses: github/codeql-action/upload-sarif@b1bff81932f5cdfc8695c7752dcee935dcd061c8 # v4
+        uses: github/codeql-action/upload-sarif@c6f931105cb2c34c8f901cc885ba1e2e259cf745 # v4
         with:
           sarif_file: results.sarif
 
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index 0fa9ca3..1048def 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -28,6 +28,6 @@ jobs:
           results_format: sarif
 
       - name: Upload results
-        uses: github/codeql-action/upload-sarif@b1bff81932f5cdfc8695c7752dcee935dcd061c8 # v3.31.8
+        uses: github/codeql-action/upload-sarif@c6f931105cb2c34c8f901cc885ba1e2e259cf745 # v3.31.8
         with:
           sarif_file: results.sarif