diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index af92f99..b1d3b1f 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -4,12 +4,18 @@ updates:
     directory: /
     schedule:
       interval: monthly
+    cooldown:
+      default-days: 7
   - package-ecosystem: nix
     directory: /
     schedule:
       interval: monthly
+    cooldown:
+      default-days: 7
   - package-ecosystem: cargo
     directory: /
     schedule:
       interval: weekly
+    cooldown:
+      default-days: 7
     versioning-strategy: lockfile-only
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 70c5a41..c464ca2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ concurrency:
 jobs:
   read_msrv:
     name: Read MSRV
-    uses: actions-rust-lang/msrv/.github/workflows/msrv.yml@main
+    uses: actions-rust-lang/msrv/.github/workflows/msrv.yml@2e4effc4a4a9437253f7f659990d4ac5ec9c7854 # main
 
   test:
     needs: read_msrv
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index d7b0de5..bd99f3b 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -17,6 +17,8 @@ jobs:
     name: Coverage
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
 
       - name: Install Nix
         uses: nixbuild/nix-quick-install-action@9f63be77f412a248c9d9a65a4c82cf066cdf8f0c # v35
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index a4c213a..856f916 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -91,3 +91,17 @@ jobs:
 
       - name: Audit check
         run: cargo deny --all-features check advisories
+
+  zizmor:
+    name: GitHub Actions Security
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - uses: zizmorcore/zizmor-action@3dc1ecc9bcb9e94e9b2c709687979e1298497054 # v0.6.2
+        with:
+          advanced-security: false
+          annotations: true
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b3a4459..ae1c2b9 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,6 +18,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Install Rust
         uses: actions-rust-lang/setup-rust-toolchain@166cdcfd11aee3cb47222f9ddb555ce30ddb9659 # v1.17.0