diff --git a/.github/workflows/build-gossamer-gui.yml b/.github/workflows/build-gossamer-gui.yml
index db9f8bce..2e962d4f 100644
--- a/.github/workflows/build-gossamer-gui.yml
+++ b/.github/workflows/build-gossamer-gui.yml
@@ -142,7 +142,7 @@ jobs:
           targets: wasm32-unknown-unknown
 
       - name: Install just
-        uses: taiki-e/install-action@v2.86.5
+        uses: taiki-e/install-action@v2.86.6
         with:
           # Pin an explicit modern just: the Justfile uses `import?`
           # (optional import, just >= 1.19.0). Unversioned `tool: just`
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e68698bc..c99ae615 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -112,7 +112,7 @@ jobs:
           components: llvm-tools-preview
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@v2.86.5
+        uses: taiki-e/install-action@v2.86.6
         with:
           tool: cargo-llvm-cov
 
diff --git a/.github/workflows/push-email-notify.yml b/.github/workflows/push-email-notify.yml
index ebd553b3..60f827b8 100644
--- a/.github/workflows/push-email-notify.yml
+++ b/.github/workflows/push-email-notify.yml
@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Send push notification email
-        uses: dawidd6/action-send-mail@v3.12.0
+        uses: dawidd6/action-send-mail@v18
         with:
           server_address: ${{ secrets.SMTP_HOST }}
           server_port: ${{ secrets.SMTP_PORT }}
diff --git a/.github/workflows/security-policy.yml b/.github/workflows/security-policy.yml
index fd929958..beee8366 100644
--- a/.github/workflows/security-policy.yml
+++ b/.github/workflows/security-policy.yml
@@ -69,7 +69,7 @@ jobs:
         uses: actions/checkout@v7.0.1
 
       - name: Install cargo-deny
-        uses: taiki-e/install-action@v2.86.5
+        uses: taiki-e/install-action@v2.86.6
         with:
           tool: cargo-deny
 
@@ -331,7 +331,7 @@ jobs:
         uses: actions/checkout@v7.0.1
 
       - name: Install cargo-deny
-        uses: taiki-e/install-action@v2.86.5
+        uses: taiki-e/install-action@v2.86.6
         with:
           tool: cargo-deny
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 97566642..63345f8e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -519,7 +519,7 @@ jobs:
           components: llvm-tools-preview
 
       - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@v2.86.5
+        uses: taiki-e/install-action@v2.86.6
         with:
           tool: cargo-llvm-cov