diff --git a/.github/workflows/boj-build.yml b/.github/workflows/boj-build.yml
index 610a8d6..e9b7b17 100644
--- a/.github/workflows/boj-build.yml
+++ b/.github/workflows/boj-build.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        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 03544b7..3ea1910 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 4183d70..29459d4 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -29,12 +29,12 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@0d579ffd059c29b07949a3cce3983f0780820c98 # v3.28.1
+        uses: github/codeql-action/init@b1bff81932f5cdfc8695c7752dcee935dcd061c8 # v3.28.1
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@0d579ffd059c29b07949a3cce3983f0780820c98 # v3.28.1
+        uses: github/codeql-action/analyze@b1bff81932f5cdfc8695c7752dcee935dcd061c8 # v3.28.1
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/hypatia-scan.yml b/.github/workflows/hypatia-scan.yml
index 8847941..23adfcd 100644
--- a/.github/workflows/hypatia-scan.yml
+++ b/.github/workflows/hypatia-scan.yml
@@ -25,7 +25,7 @@ jobs:
           fetch-depth: 0  # Full history for better pattern analysis
 
       - name: Setup Elixir for Hypatia scanner
-        uses: erlef/setup-beam@9d5b75ddfda22fb979d2270283237aef8aa68d6b # v1.18.2
+        uses: erlef/setup-beam@ee09b1e59bb240681c382eb1f0abc6a04af72764 # v1.18.2
         with:
           elixir-version: '1.19.4'
           otp-version: '28.3'
diff --git a/.github/workflows/php-lint.yml b/.github/workflows/php-lint.yml
index e8f1b1e..4a1c6d9 100644
--- a/.github/workflows/php-lint.yml
+++ b/.github/workflows/php-lint.yml
@@ -43,7 +43,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@44454db4f0199b8b9685a5d763dc37cbf79108e1 # v2.36.0
+        uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # v2.37.0
         with:
           php-version: ${{ env.PHP_VERSION }}
           tools: none
@@ -69,7 +69,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@44454db4f0199b8b9685a5d763dc37cbf79108e1 # v2.36.0
+        uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # v2.37.0
         with:
           php-version: ${{ env.PHP_VERSION }}
           tools: php-cs-fixer:3
@@ -93,7 +93,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@44454db4f0199b8b9685a5d763dc37cbf79108e1 # v2.36.0
+        uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # v2.37.0
         with:
           php-version: ${{ env.PHP_VERSION }}
           tools: phpstan:1
@@ -274,7 +274,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@44454db4f0199b8b9685a5d763dc37cbf79108e1 # v2.36.0
+        uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # v2.37.0
         with:
           php-version: ${{ env.PHP_VERSION }}
           tools: composer:2
@@ -301,7 +301,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@44454db4f0199b8b9685a5d763dc37cbf79108e1 # v2.36.0
+        uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # v2.37.0
         with:
           php-version: ${{ env.PHP_VERSION }}
           extensions: xdebug
@@ -357,7 +357,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup PHP ${{ matrix.php }}
-        uses: shivammathur/setup-php@44454db4f0199b8b9685a5d763dc37cbf79108e1 # v2.36.0
+        uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # v2.37.0
         with:
           php-version: ${{ matrix.php }}
           coverage: none
diff --git a/.github/workflows/scorecard-enforcer.yml b/.github/workflows/scorecard-enforcer.yml
index 4ad1f3b..24753d0 100644
--- a/.github/workflows/scorecard-enforcer.yml
+++ b/.github/workflows/scorecard-enforcer.yml
@@ -30,7 +30,7 @@ jobs:
           publish_results: true
 
       - name: Upload SARIF
-        uses: github/codeql-action/upload-sarif@0d579ffd059c29b07949a3cce3983f0780820c98 # v3
+        uses: github/codeql-action/upload-sarif@b1bff81932f5cdfc8695c7752dcee935dcd061c8 # v3
         with:
           sarif_file: results.sarif
 
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index 14642d9..ca2c7fc 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -27,6 +27,6 @@ jobs:
           results_format: sarif
 
       - name: Upload results
-        uses: github/codeql-action/upload-sarif@0d579ffd059c29b07949a3cce3983f0780820c98 # v3.31.8
+        uses: github/codeql-action/upload-sarif@b1bff81932f5cdfc8695c7752dcee935dcd061c8 # v3.31.8
         with:
           sarif_file: results.sarif