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/validate-submission.yml b/.github/workflows/validate-submission.yml
index ec7ef10..292a580 100644
--- a/.github/workflows/validate-submission.yml
+++ b/.github/workflows/validate-submission.yml
@@ -11,7 +11,7 @@ jobs:
     
     steps:
       - name: Check submission issue
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         with:
           script: |
             const issue = context.payload.issue;
@@ -212,7 +212,7 @@ jobs:
             });
             
       - name: Check repository accessibility
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7.1.0
         with:
           script: |
             const issue = context.payload.issue;