diff --git a/.github/workflows/actions.lock b/.github/workflows/actions.lock
index 2825858..3d14fac 100644
--- a/.github/workflows/actions.lock
+++ b/.github/workflows/actions.lock
@@ -4,14 +4,14 @@
 version: 'v0.0.2'
 workflows:
     '.github/workflows/boj-build.yml':
-        - 'actions/checkout@v4.1.7'
+        - 'actions/checkout@v7.0.1'
     '.github/workflows/casket-pages.yml':
-        - 'actions/cache@v4.3.0'
-        - 'actions/checkout@v4.1.1'
-        - 'actions/configure-pages@v5.0.0'
-        - 'actions/deploy-pages@v4.0.5'
-        - 'actions/upload-pages-artifact@v3.0.1'
-        - 'haskell-actions/setup@v2.7.5'
+        - 'actions/cache@v6.1.0'
+        - 'actions/checkout@v7.0.1'
+        - 'actions/configure-pages@v6.0.0'
+        - 'actions/deploy-pages@v5.0.1'
+        - 'actions/upload-pages-artifact@v5.0.0'
+        - 'haskell-actions/setup@v2.12.0'
     '.github/workflows/governance.yml': []
     '.github/workflows/hypatia-scan.yml': []
     '.github/workflows/instant-sync.yml':
@@ -22,65 +22,49 @@ workflows:
     '.github/workflows/push-email-notify.yml':
         - 'dawidd6/action-send-mail@v3.12.0'
     '.github/workflows/secret-scanner.yml':
-        - 'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1'
-        - 'actions/checkout@v4.4.0'
+        - 'actions/checkout@v7.0.1'
         - 'trufflesecurity/trufflehog@main'
 dependencies:
-    'actions/cache@v4.3.0':
-        ref: 'v4.3.0'
-        commit: 'sha1-0057852bfaa89a56745cba8c7296529d2fc39830'
+    'actions/cache@v6.1.0':
+        ref: 'v6.1.0'
+        commit: 'sha1-55cc8345863c7cc4c66a329aec7e433d2d1c52a9'
         owner_id: 44036562
         repo_id: 215566462
-    'actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1':
+    'actions/checkout@v7.0.1':
         ref: 'v7.0.1'
         commit: 'sha1-3d3c42e5aac5ba805825da76410c181273ba90b1'
         owner_id: 44036562
         repo_id: 197814629
-    'actions/checkout@v4.1.1':
-        ref: 'v4.1.1'
-        commit: 'sha1-b4ffde65f46336ab88eb53be808477a3936bae11'
-        owner_id: 44036562
-        repo_id: 197814629
-    'actions/checkout@v4.1.7':
-        ref: 'v4.1.7'
-        commit: 'sha1-692973e3d937129bcbf40652eb9f2f61becf3332'
-        owner_id: 44036562
-        repo_id: 197814629
-    'actions/checkout@v4.4.0':
-        ref: 'v4.4.0'
-        commit: 'sha1-11d5960a326750d5838078e36cf38b85af677262'
-        owner_id: 44036562
-        repo_id: 197814629
-    'actions/configure-pages@v5.0.0':
-        ref: 'v5.0.0'
-        commit: 'sha1-983d7736d9b0ae728b81ab479565c72886d7745b'
+    'actions/configure-pages@v6.0.0':
+        ref: 'v6.0.0'
+        commit: 'sha1-45bfe0192ca1faeb007ade9deae92b16b8254a0d'
         owner_id: 44036562
         repo_id: 513659658
-    'actions/deploy-pages@v4.0.5':
-        ref: 'v4.0.5'
-        commit: 'sha1-d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e'
+    'actions/deploy-pages@v5.0.1':
+        ref: 'v5.0.1'
+        commit: 'sha1-368f82528645a54fb793d4d04e342629a3f51346'
         owner_id: 44036562
         repo_id: 438112499
-    'actions/upload-artifact@v4':
-        ref: 'v4'
-        commit: 'sha1-ea165f8d65b6e75b540449e92b4886f43607fa02'
+    'actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f':
+        ref: 'v7.0.0'
+        commit: 'sha1-bbbca2ddaa5d8feaa63e36b76fdaad77386f024f'
         owner_id: 44036562
         repo_id: 192625955
-    'actions/upload-pages-artifact@v3.0.1':
-        ref: 'v3.0.1'
-        commit: 'sha1-56afc609e74202658d3ffba0e8f6dda462b719fa'
+    'actions/upload-pages-artifact@v5.0.0':
+        ref: 'v5.0.0'
+        commit: 'sha1-fc324d3547104276b827a68afc52ff2a11cc49c9'
         owner_id: 44036562
         repo_id: 496012378
         uses:
-            - 'actions/upload-artifact@v4'
+            - 'actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f'
     'dawidd6/action-send-mail@v3.12.0':
         ref: 'v3.12.0'
-        commit: 'sha1-6e502825a508b867ab2954ad6343b68787624c01'
+        commit: 'sha1-67ce3558d613188179559c61d3565140cf389968'
         owner_id: 9713907
         repo_id: 222439721
-    'haskell-actions/setup@v2.7.5':
-        ref: 'v2.7.5'
-        commit: 'sha1-ec49483bfc012387b227434aba94f59a6ecd0900'
+    'haskell-actions/setup@v2.12.0':
+        ref: 'v2.12.0'
+        commit: 'sha1-6037f33647c3f17758a2356c80fc4a53d7e0685d'
         owner_id: 75048950
         repo_id: 623796603
     'peter-evans/repository-dispatch@v4.0.1':
diff --git a/.github/workflows/boj-build.yml b/.github/workflows/boj-build.yml
index accee54..cbdcfda 100644
--- a/.github/workflows/boj-build.yml
+++ b/.github/workflows/boj-build.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
 # This workflow is managed by gh actions-lock.
 # This workflow is managed by gh actions-lock.
diff --git a/.github/workflows/casket-pages.yml b/.github/workflows/casket-pages.yml
index 050f0cf..7c59949 100644
--- a/.github/workflows/casket-pages.yml
+++ b/.github/workflows/casket-pages.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
 # This workflow is managed by gh actions-lock.
 # This workflow is managed by gh actions-lock.
diff --git a/.github/workflows/governance.yml b/.github/workflows/governance.yml
index f8287c8..6391deb 100644
--- a/.github/workflows/governance.yml
+++ b/.github/workflows/governance.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: PMPL-1.0-or-later
 # This workflow is managed by gh actions-lock.
 # This workflow is managed by gh actions-lock.
diff --git a/.github/workflows/hypatia-scan.yml b/.github/workflows/hypatia-scan.yml
index fd27dbd..262c06e 100644
--- a/.github/workflows/hypatia-scan.yml
+++ b/.github/workflows/hypatia-scan.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: PMPL-1.0-or-later
 # This workflow is managed by gh actions-lock.
 # This workflow is managed by gh actions-lock.
diff --git a/.github/workflows/instant-sync.yml b/.github/workflows/instant-sync.yml
index 32c2e52..350a2bd 100644
--- a/.github/workflows/instant-sync.yml
+++ b/.github/workflows/instant-sync.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
 # This workflow is managed by gh actions-lock.
 # This workflow is managed by gh actions-lock.
diff --git a/.github/workflows/label-triage.yml b/.github/workflows/label-triage.yml
index 9886e92..814a192 100644
--- a/.github/workflows/label-triage.yml
+++ b/.github/workflows/label-triage.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
 name: Label Triage
 
diff --git a/.github/workflows/labels.yml b/.github/workflows/labels.yml
index c80b676..83ab941 100644
--- a/.github/workflows/labels.yml
+++ b/.github/workflows/labels.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
 name: Labels
 
diff --git a/.github/workflows/mirror.yml b/.github/workflows/mirror.yml
index 1da8669..747919b 100644
--- a/.github/workflows/mirror.yml
+++ b/.github/workflows/mirror.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
 # This workflow is managed by gh actions-lock.
 # This workflow is managed by gh actions-lock.
diff --git a/.github/workflows/push-email-notify.yml b/.github/workflows/push-email-notify.yml
index f1bdbbe..587979f 100644
--- a/.github/workflows/push-email-notify.yml
+++ b/.github/workflows/push-email-notify.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
 # This workflow is managed by gh actions-lock.
 # This workflow is managed by gh actions-lock.
@@ -17,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Send push notification email
-        uses: dawidd6/action-send-mail@v22
+        uses: dawidd6/action-send-mail@v3.12.0
         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 b9e7ce3..312b440 100644
--- a/.github/workflows/secret-scanner.yml
+++ b/.github/workflows/secret-scanner.yml
@@ -1,3 +1,4 @@
+# This workflow is managed by gh actions-lock.
 # SPDX-License-Identifier: MPL-2.0
 # This workflow is managed by gh actions-lock.
 # This workflow is managed by gh actions-lock.