diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..2c48305
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,11 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    groups:
+      github-actions:
+        patterns: ["*"]
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/plugin-validation.yml b/.github/workflows/plugin-validation.yml
index cf4f851..0becb02 100644
--- a/.github/workflows/plugin-validation.yml
+++ b/.github/workflows/plugin-validation.yml
@@ -16,9 +16,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: "3.11"
       - name: Verify all marketplace manifests are synchronized
@@ -30,9 +30,9 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: "3.11"
       - name: Verify all marketplace manifests are synchronized
diff --git a/.github/workflows/public-safety-review.yml b/.github/workflows/public-safety-review.yml
index 3861b0e..64f3dc6 100644
--- a/.github/workflows/public-safety-review.yml
+++ b/.github/workflows/public-safety-review.yml
@@ -15,9 +15,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: "3.11"
       - name: Verify all marketplace manifests are synchronized
@@ -71,7 +71,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Request GitHub Copilot public-safety review
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         with:
           script: |
             const pull = context.payload.pull_request;
diff --git a/.github/workflows/release-plugin.yml b/.github/workflows/release-plugin.yml
index 6bec87e..e183ba3 100644
--- a/.github/workflows/release-plugin.yml
+++ b/.github/workflows/release-plugin.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
       - name: Verify all marketplace manifests are synchronized
         run: python build/validate_plugin.py --check
diff --git a/.github/workflows/version-bump-check.yml b/.github/workflows/version-bump-check.yml
index 03c09a6..52e8b1c 100644
--- a/.github/workflows/version-bump-check.yml
+++ b/.github/workflows/version-bump-check.yml
@@ -13,13 +13,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: 1
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: "3.11"
 
@@ -49,7 +49,7 @@ jobs:
 
       - name: Publish neutral version bump warning
         if: steps.version_bump.outputs.version_bumped == 'false'
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         continue-on-error: true
         env:
           WARNING_MESSAGE: ${{ steps.version_bump.outputs.warning_message }}