diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 00000000..2c48305b
--- /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/pr-summary-eval-reusable.yml b/.github/workflows/pr-summary-eval-reusable.yml
index 0049162d..aebdba4f 100644
--- a/.github/workflows/pr-summary-eval-reusable.yml
+++ b/.github/workflows/pr-summary-eval-reusable.yml
@@ -15,15 +15,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: '20'
 
       - name: Fetch current PR body
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         env:
           PR_NUMBER: ${{ inputs.pr-number }}
         with:
@@ -44,7 +44,7 @@ jobs:
           echo "Eval exit code: $?"
 
       - name: Post evaluation comment
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         env:
           PR_NUMBER: ${{ inputs.pr-number }}
         with:
diff --git a/.github/workflows/pr-summary-generate.yml b/.github/workflows/pr-summary-generate.yml
index 794939dc..b249f4ff 100644
--- a/.github/workflows/pr-summary-generate.yml
+++ b/.github/workflows/pr-summary-generate.yml
@@ -37,13 +37,13 @@ jobs:
           fi
 
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
         with:
           fetch-depth: 0
 
       - name: React to comment
         if: github.event_name == 'issue_comment'
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         with:
           script: |
             await github.rest.reactions.createForIssueComment({
@@ -71,7 +71,7 @@ jobs:
 
       - name: Generate summary with GitHub Models
         id: generate
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
@@ -156,7 +156,7 @@ jobs:
 
       - name: Update PR title and description
         if: steps.generate.outputs.summary != ''
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         env:
           PR_TITLE: ${{ steps.generate.outputs.title }}
           PR_NUMBER: ${{ steps.pr-number.outputs.number }}