diff --git a/.github/workflows/casket-pages.yml b/.github/workflows/casket-pages.yml
index 10a36d8..5c0a496 100644
--- a/.github/workflows/casket-pages.yml
+++ b/.github/workflows/casket-pages.yml
@@ -29,7 +29,7 @@ jobs:
           ghc-version: '9.8.2'
           cabal-version: '3.10'
       - name: Cache Cabal
-        uses: actions/cache@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6.0.0
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: |
             ~/.cabal/packages
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 613e9b8..dee6637 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -35,11 +35,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v3
+        uses: github/codeql-action/init@54f647b7e1bb85c95cddabcd46b0c578ec92bc1a # v3
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v3
+        uses: github/codeql-action/analyze@54f647b7e1bb85c95cddabcd46b0c578ec92bc1a # v3
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/comprehensive-quality.yml b/.github/workflows/comprehensive-quality.yml
index dfc7e11..5d7c5f0 100644
--- a/.github/workflows/comprehensive-quality.yml
+++ b/.github/workflows/comprehensive-quality.yml
@@ -40,7 +40,7 @@ jobs:
     steps:
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Secret scanning
-        uses: trufflesecurity/trufflehog@30d5bb91af1a771378349dbbb0c82129392acf70 # v3.88.3
+        uses: trufflesecurity/trufflehog@f446421baf832d6356c42c1743d99abff52ff334 # v3.88.3
         continue-on-error: true
       - name: Dependency vulnerabilities
         run: |
diff --git a/.github/workflows/push-email-notify.yml b/.github/workflows/push-email-notify.yml
index 4b4e754..0816771 100644
--- a/.github/workflows/push-email-notify.yml
+++ b/.github/workflows/push-email-notify.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Send push notification email
-        uses: dawidd6/action-send-mail@6e502825a508b867ab2954ad6343b68787624c01 # pinned
+        uses: dawidd6/action-send-mail@c50dc4cc848ade21f848990889906d804fae78c5 # pinned
         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 5a7eaca..d060219 100644
--- a/.github/workflows/secret-scanner.yml
+++ b/.github/workflows/secret-scanner.yml
@@ -24,7 +24,7 @@ jobs:
         with:
           fetch-depth: 0 # Full history for scanning
       - name: TruffleHog Secret Scan
-        uses: trufflesecurity/trufflehog@30d5bb91af1a771378349dbbb0c82129392acf70 # v3
+        uses: trufflesecurity/trufflehog@f446421baf832d6356c42c1743d99abff52ff334 # v3
         with:
           # The v3 action injects --fail automatically on pull_request events.
           # Passing --fail here triggers "flag 'fail' cannot be repeated".