diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 2c4ecf9..887dfdc 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -58,7 +58,7 @@ jobs:
         # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
     steps:
     - name: Checkout repository
-      uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v4
+      uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v4
 
     # Add any setup steps before running the `github/codeql-action/init` action.
     # This includes steps like installing compilers or runtimes (`actions/setup-node`
@@ -68,7 +68,7 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v3
+      uses: github/codeql-action/init@99df26d4f13ea111d4ec1a7dddef6063f76b97e9 # v3
       with:
         languages: ${{ matrix.language }}
         build-mode: ${{ matrix.build-mode }}
@@ -97,6 +97,6 @@ jobs:
         exit 1
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@8aad20d150bbac5944a9f9d289da16a4b0d87c1e # v3
+      uses: github/codeql-action/analyze@99df26d4f13ea111d4ec1a7dddef6063f76b97e9 # v3
       with:
         category: "/language:${{matrix.language}}"
diff --git a/.github/workflows/generator-generic-ossf-slsa3-publish.yml b/.github/workflows/generator-generic-ossf-slsa3-publish.yml
index 6e55358..966d8b6 100644
--- a/.github/workflows/generator-generic-ossf-slsa3-publish.yml
+++ b/.github/workflows/generator-generic-ossf-slsa3-publish.yml
@@ -24,7 +24,7 @@ jobs:
       digests: ${{ steps.hash.outputs.digests }}
 
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v4
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v4
 
       # ========================================================
       #
diff --git a/.github/workflows/jekyll-gh-pages.yml b/.github/workflows/jekyll-gh-pages.yml
index 70e78ea..a451b85 100644
--- a/.github/workflows/jekyll-gh-pages.yml
+++ b/.github/workflows/jekyll-gh-pages.yml
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v4
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v4
       - name: Setup Pages
         uses: actions/configure-pages@45bfe0192ca1faeb007ade9deae92b16b8254a0d # v6.0.0
       - name: Build with Jekyll
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/rescript-deno-ci.yml b/.github/workflows/rescript-deno-ci.yml
index 8d28fcc..d08bde8 100644
--- a/.github/workflows/rescript-deno-ci.yml
+++ b/.github/workflows/rescript-deno-ci.yml
@@ -15,7 +15,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v4
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v4
       - uses: denoland/setup-deno@v2
         with:
           deno-version: v1.x
@@ -42,7 +42,7 @@ jobs:
   security:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v4
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v4
       - uses: denoland/setup-deno@v2
       - name: Check permissions
         run: |
diff --git a/.github/workflows/workflow-linter.yml b/.github/workflows/workflow-linter.yml
index 1e594b4..636a055 100644
--- a/.github/workflows/workflow-linter.yml
+++ b/.github/workflows/workflow-linter.yml
@@ -16,7 +16,7 @@ jobs:
   lint-workflows:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v4
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v4
 
       - name: Check SPDX headers
         run: |