diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index d7ebdbf..5fd269d 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,16 +1,20 @@
 version: 2
 updates:
-    # Maintain dependencies for GitHub Actions.
-    - package-ecosystem: "github-actions"
-      directory: "/"
-      schedule:
-          interval: "daily"
-      # Too noisy. See https://github.community/t/increase-if-necessary-for-github-actions-in-dependabot/179581
-      open-pull-requests-limit: 0
+  # Maintain dependencies for GitHub Actions.
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    ignore:
+      - dependency-name: "yiisoft/*"
 
-    # Maintain dependencies for Composer
-    - package-ecosystem: "composer"
-      directory: "/"
-      schedule:
-          interval: "daily"
-      versioning-strategy: increase-if-necessary
+  # Maintain dependencies for Composer
+  - package-ecosystem: "composer"
+    directory: "/"
+    schedule:
+        interval: "daily"
+    versioning-strategy: increase-if-necessary
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/bc.yml b/.github/workflows/bc.yml
index 0ea4a5c..cd57767 100644
--- a/.github/workflows/bc.yml
+++ b/.github/workflows/bc.yml
@@ -23,6 +23,8 @@ on:
 
 name: backwards compatibility
 
+permissions:
+  contents: read
 jobs:
   roave_bc_check:
     uses: yiisoft/actions/.github/workflows/bc.yml@master
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 43eab1c..6995f25 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -22,6 +22,8 @@ on:
 
 name: build
 
+permissions:
+  contents: read
 jobs:
   phpunit:
     uses: yiisoft/actions/.github/workflows/phpunit.yml@master
diff --git a/.github/workflows/composer-require-checker.yml b/.github/workflows/composer-require-checker.yml
index 57379c0..99589c2 100644
--- a/.github/workflows/composer-require-checker.yml
+++ b/.github/workflows/composer-require-checker.yml
@@ -24,6 +24,8 @@ on:
 
 name: Composer require checker
 
+permissions:
+  contents: read
 jobs:
   composer-require-checker:
     uses: yiisoft/actions/.github/workflows/composer-require-checker.yml@master
diff --git a/.github/workflows/mutation.yml b/.github/workflows/mutation.yml
index d746b42..bdd64d4 100644
--- a/.github/workflows/mutation.yml
+++ b/.github/workflows/mutation.yml
@@ -20,6 +20,8 @@ on:
 
 name: mutation test
 
+permissions:
+  contents: read
 jobs:
   mutation:
     uses: yiisoft/actions/.github/workflows/roave-infection.yml@master
diff --git a/.github/workflows/rector-cs.yml b/.github/workflows/rector-cs.yml
index a000eab..f4a9e94 100644
--- a/.github/workflows/rector-cs.yml
+++ b/.github/workflows/rector-cs.yml
@@ -1,7 +1,7 @@
 name: Rector + PHP CS Fixer
 
 on:
-  pull_request_target:
+  pull_request:
     paths:
       - 'config/**'
       - 'src/**'
@@ -12,7 +12,7 @@ on:
       - '.php-cs-fixer.dist.php'
 
 permissions:
-  contents: write
+  contents: read
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -20,6 +20,8 @@ concurrency:
 
 jobs:
   rector:
+    permissions:
+      contents: write # Required to push PHP CS Fixer and Rector changes back to the branch.
     uses: yiisoft/actions/.github/workflows/rector-cs.yml@master
     with:
       php: '7.4'
diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index 958261b..16cd1ff 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -22,6 +22,8 @@ on:
 
 name: static analysis
 
+permissions:
+  contents: read
 jobs:
   psalm:
     uses: yiisoft/actions/.github/workflows/psalm.yml@master
diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
new file mode 100644
index 0000000..430255d
--- /dev/null
+++ b/.github/workflows/zizmor.yml
@@ -0,0 +1,22 @@
+name: GitHub Actions Security Analysis with zizmor 🌈
+
+on:
+  push:
+    branches:
+      - master
+      - main
+    paths:
+      - '.github/**.yml'
+      - '.github/**.yaml'
+  pull_request:
+    paths:
+      - '.github/**.yml'
+      - '.github/**.yaml'
+
+permissions:
+  actions: read # Required by zizmor when reading workflow metadata through the API.
+  contents: read # Required to read workflow files.
+
+jobs:
+  zizmor:
+    uses: yiisoft/actions/.github/workflows/zizmor.yml@master