diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 09f4568..3239b02 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -8,3 +8,15 @@ updates:
       bundler:
         patterns:
           - "*"
+    cooldown:
+      default-days: 7
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f76a6e0..19dff9f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -22,9 +22,11 @@ jobs:
           - '3.3'
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
       - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@14594264cd68ce8a2345dd349bc3d138a4ef85c8 # v1.327.0
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e9dc42a..9608cc8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -19,11 +19,15 @@ jobs:
 
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          persist-credentials: false
       - name: Set up Ruby
         uses: ruby/setup-ruby@354a1ad156761f5ee2b7b13fa8e09943a5e8d252 # v1.229.0
         with:
-          bundler-cache: true
           ruby-version: ruby
+      # Not bundler-cache: a tag-triggered release shouldn't restore a cache other workflows can write.
+      - name: Install gems
+        run: bundle install
 
       # Release
-      - uses: rubygems/release-gem@a25424ba2ba8b387abc8ef40807c2c85b96cbe32 # v1
+      - uses: rubygems/release-gem@a25424ba2ba8b387abc8ef40807c2c85b96cbe32 # v1.1.1
diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
new file mode 100644
index 0000000..e5a0721
--- /dev/null
+++ b/.github/workflows/zizmor.yml
@@ -0,0 +1,16 @@
+name: GitHub Actions Security Analysis
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: ["**"]
+
+permissions: {}
+
+jobs:
+  zizmor:
+    permissions:
+      contents: read
+      security-events: write
+    uses: rubyatscale/shared-config/.github/workflows/zizmor.yml@main # zizmor: ignore[unpinned-uses] internal reusable workflow tracked at @main by convention so shared-config updates propagate automatically