diff --git a/.github/workflows/boj-build.yml b/.github/workflows/boj-build.yml
index b59be5f..245845d 100644
--- a/.github/workflows/boj-build.yml
+++ b/.github/workflows/boj-build.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Trigger BoJ Server (Casket/ssg-mcp)
         run: |
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index c011704..afc67e4 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/mirror.yml b/.github/workflows/mirror.yml
index 56e7953..7d5a0f3 100644
--- a/.github/workflows/mirror.yml
+++ b/.github/workflows/mirror.yml
@@ -18,7 +18,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
+      - uses: webfactory/ssh-agent@e83874834305fe9a4a2997156cb26c5de65a8555 # v0.10.0
         with:
           ssh-private-key: ${{ secrets.GITLAB_SSH_KEY }}
 
@@ -36,7 +36,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
+      - uses: webfactory/ssh-agent@e83874834305fe9a4a2997156cb26c5de65a8555 # v0.10.0
         with:
           ssh-private-key: ${{ secrets.BITBUCKET_SSH_KEY }}
 
@@ -54,7 +54,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
+      - uses: webfactory/ssh-agent@e83874834305fe9a4a2997156cb26c5de65a8555 # v0.10.0
         with:
           ssh-private-key: ${{ secrets.CODEBERG_SSH_KEY }}
 
@@ -72,7 +72,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
+      - uses: webfactory/ssh-agent@e83874834305fe9a4a2997156cb26c5de65a8555 # v0.10.0
         with:
           ssh-private-key: ${{ secrets.SOURCEHUT_SSH_KEY }}
 
@@ -90,7 +90,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
+      - uses: webfactory/ssh-agent@e83874834305fe9a4a2997156cb26c5de65a8555 # v0.10.0
         with:
           ssh-private-key: ${{ secrets.DISROOT_SSH_KEY }}
 
@@ -108,7 +108,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: webfactory/ssh-agent@a6f90b1f127823b31d4d4a8d96047790581349bd # v0.9.1
+      - uses: webfactory/ssh-agent@e83874834305fe9a4a2997156cb26c5de65a8555 # v0.10.0
         with:
           ssh-private-key: ${{ secrets.GITEA_SSH_KEY }}
 
diff --git a/.github/workflows/rust-ci.yml b/.github/workflows/rust-ci.yml
index f8eeb42..d81518d 100644
--- a/.github/workflows/rust-ci.yml
+++ b/.github/workflows/rust-ci.yml
@@ -16,7 +16,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@efa25f7f19611383d5b0ccf2d1c8914531636bf9 # stable
         with:
           components: rustfmt, clippy
-      - uses: Swatinem/rust-cache@779680da715d629ac1d338a641029a2f4372abb5 # v2.8.2
+      - uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
 
       - name: Check formatting
         run: cargo fmt --all -- --check
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