diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index fdea7e2d8ee..24d1f53fb57 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -10,3 +10,5 @@ updates:
   schedule:
     interval: daily
   open-pull-requests-limit: 10
+  cooldown:
+    default-days: 7
\ No newline at end of file
diff --git a/.github/workflows/pr-validation.yml b/.github/workflows/pr-validation.yml
index 93adbd4ae4a..807d9ca5368 100644
--- a/.github/workflows/pr-validation.yml
+++ b/.github/workflows/pr-validation.yml
@@ -22,10 +22,10 @@ jobs:
         php-versions: ['8.2', '8.3', '8.4', '8.5']
     steps:
     - name: Setup PHP
-      uses: shivammathur/setup-php@v2
+      uses: shivammathur/setup-php@f3e473d116dcccaddc5834248c87452386958240 # 2.37.2
       with:
         php-version: ${{ matrix.php-versions }}
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
     - name: Validate composer file
       run: |
         composer validate
diff --git a/.github/workflows/project-auto-add.yml b/.github/workflows/project-auto-add.yml
index a30dcac0959..bafd0ca2241 100644
--- a/.github/workflows/project-auto-add.yml
+++ b/.github/workflows/project-auto-add.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
       - name: Generate token
         id: generate_token
-        uses: actions/create-github-app-token@v3
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
         with:
           app-id: ${{ secrets.GRAPHBOT_APP_ID }}
           private-key: ${{ secrets.GRAPHBOT_APP_PEM }}
diff --git a/.github/workflows/release-please-gha.yml b/.github/workflows/release-please-gha.yml
index aa209009eb2..d517238052c 100644
--- a/.github/workflows/release-please-gha.yml
+++ b/.github/workflows/release-please-gha.yml
@@ -19,17 +19,17 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Generate GitHub App token
         id: app-token
-        uses: actions/create-github-app-token@v3
+        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
         with:
           app-id: ${{ vars.RELEASE_PLEASE_TOKEN_PROVIDER_APP_ID }}
           private-key: ${{ secrets.RELEASE_PLEASE_TOKEN_PROVIDER_PEM }}
 
       - name: Release Please
-        uses: googleapis/release-please-action@v5
+        uses: googleapis/release-please-action@45996ed1f6d02564a971a2fa1b5860e934307cf7 # v5.0.0
         with:
           token: ${{ steps.app-token.outputs.token }}
           config-file: release-please-config.json
diff --git a/.github/workflows/validate-generated-api-surface.yml b/.github/workflows/validate-generated-api-surface.yml
index 807f63bcd53..7dec6fc827a 100644
--- a/.github/workflows/validate-generated-api-surface.yml
+++ b/.github/workflows/validate-generated-api-surface.yml
@@ -17,7 +17,7 @@ jobs:
   validate-public-api-surface:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: microsoftgraph/kiota-dom-export-diff-tool/export@main
         id: generatePatch
       - uses: microsoftgraph/kiota-dom-export-diff-tool/tool@main
@@ -35,14 +35,14 @@ jobs:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Upload patch file as artifact
         if: always()
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         continue-on-error: true
         with:
           name: patch
           path: '*.patch'
       - name: Upload explanations file as artifact
         if: always()
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         continue-on-error: true
         with:
           name: explanations