diff --git a/.github/workflows/boj-build.yml b/.github/workflows/boj-build.yml
index dc5e072..accee54 100644
--- a/.github/workflows/boj-build.yml
+++ b/.github/workflows/boj-build.yml
@@ -12,7 +12,7 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout
-        uses: actions/checkout@v4.1.7
+        uses: actions/checkout@v7.0.1
       - 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 d175556..050f0cf 100644
--- a/.github/workflows/casket-pages.yml
+++ b/.github/workflows/casket-pages.yml
@@ -19,19 +19,19 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout
-        uses: actions/checkout@v4.1.1
+        uses: actions/checkout@v7.0.1
       - name: Checkout casket-ssg
-        uses: actions/checkout@v4.1.1
+        uses: actions/checkout@v7.0.1
         with:
           repository: hyperpolymath/casket-ssg
           path: .casket-ssg
       - name: Setup GHCup
-        uses: haskell-actions/setup@v2.7.5
+        uses: haskell-actions/setup@v2.12.0
         with:
           ghc-version: '9.8.2'
           cabal-version: '3.10'
       - name: Cache Cabal
-        uses: actions/cache@v4.3.0
+        uses: actions/cache@v6.1.0
         with:
           path: |
             ~/.cabal/packages
@@ -89,9 +89,9 @@ jobs:
           cd .casket-ssg && cabal run casket-ssg -- build ../.site-src ../_site
           touch ../_site/.nojekyll
       - name: Setup Pages
-        uses: actions/configure-pages@v5.0.0
+        uses: actions/configure-pages@v6.0.0
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3.0.1
+        uses: actions/upload-pages-artifact@v5.0.0
         with:
           path: '_site'
   deploy:
@@ -104,4 +104,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4.0.5
+        uses: actions/deploy-pages@v5.0.1
diff --git a/.github/workflows/push-email-notify.yml b/.github/workflows/push-email-notify.yml
index 4f733f4..f1bdbbe 100644
--- a/.github/workflows/push-email-notify.yml
+++ b/.github/workflows/push-email-notify.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Send push notification email
-        uses: dawidd6/action-send-mail@v3.12.0
+        uses: dawidd6/action-send-mail@v22
         with:
           server_address: ${{ secrets.SMTP_HOST }}
           server_port: ${{ secrets.SMTP_PORT }}
diff --git a/.github/workflows/secret-scanner.yml b/.github/workflows/secret-scanner.yml
index 890ebfd..b9e7ce3 100644
--- a/.github/workflows/secret-scanner.yml
+++ b/.github/workflows/secret-scanner.yml
@@ -19,7 +19,7 @@ jobs:
   trufflehog:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.4.0
+      - uses: actions/checkout@v7.0.1
         with:
           fetch-depth: 0
       - name: TruffleHog Secret Scan