diff --git a/.github/workflows/casket-pages.yml b/.github/workflows/casket-pages.yml
index 2b0178c2..98fb8b18 100644
--- a/.github/workflows/casket-pages.yml
+++ b/.github/workflows/casket-pages.yml
@@ -129,4 +129,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v5.0.0
+        uses: actions/deploy-pages@v5.0.1
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 73691a8b..8bf91bf3 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -39,11 +39,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v7.0.1
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v4.37.9
+        uses: github/codeql-action/init@v4.38.0
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v4.37.9
+        uses: github/codeql-action/analyze@v4.38.0
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index f80f5cbf..4124e834 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -53,4 +53,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v5.0.0
+        uses: actions/deploy-pages@v5.0.1
diff --git a/.github/workflows/push-email-notify.yml b/.github/workflows/push-email-notify.yml
index ece395bc..53cfeab8 100644
--- a/.github/workflows/push-email-notify.yml
+++ b/.github/workflows/push-email-notify.yml
@@ -24,7 +24,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Send push notification email
-        uses: hyperpolymath/smtp-notify-action@v0.1.0 # NOSONAR — pin authority is actions.lock (sha1-1b3b752d39a4fe4c0f28f10905e4608789d3e050)
+        uses: hyperpolymath/smtp-notify-action@v0.3.0 # NOSONAR — pin authority is actions.lock (sha1-1b3b752d39a4fe4c0f28f10905e4608789d3e050)
         with:
           server_address: ${{ secrets.SMTP_HOST }}
           server_port: ${{ secrets.SMTP_PORT }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 90b2306d..fd6a1003 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -74,7 +74,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v7.0.1
       - name: Set up OCaml
-        uses: ocaml/setup-ocaml@v3.7.2
+        uses: ocaml/setup-ocaml@v3.8.0
         with:
           ocaml-compiler: "5.1"
       - name: Install dependencies
diff --git a/.github/workflows/semgrep.yml b/.github/workflows/semgrep.yml
index d01ccfcd..65c18906 100644
--- a/.github/workflows/semgrep.yml
+++ b/.github/workflows/semgrep.yml
@@ -30,7 +30,7 @@ jobs:
       - name: Run Semgrep
         run: semgrep scan --sarif --output=semgrep.sarif --config=auto .
       - name: Upload SARIF
-        uses: github/codeql-action/upload-sarif@v4.37.9
+        uses: github/codeql-action/upload-sarif@v4.38.0
         with:
           sarif_file: semgrep.sarif
         if: always()