diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000000..2c48305b7e
--- /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/spelling3.yml b/.github/workflows/spelling3.yml
index cd1af70657..82374e62bc 100644
--- a/.github/workflows/spelling3.yml
+++ b/.github/workflows/spelling3.yml
@@ -91,7 +91,7 @@ jobs:
     steps:
       - name: check-spelling
         id: spelling
-        uses: check-spelling/check-spelling@v0.0.26
+        uses: check-spelling/check-spelling@cfb6f7e75bbfc89c71eaa30366d0c166f1bd9c8c # v0.0.26
         with:
           suppress_push_for_open_pull_request: ${{ github.actor != 'dependabot[bot]' && 1 }}
           checkout: true
@@ -140,7 +140,7 @@ jobs:
     if: (success() || failure()) && needs.spelling.outputs.followup && contains(github.event_name, 'pull_request')
     steps:
       - name: comment
-        uses: check-spelling/check-spelling@v0.0.26
+        uses: check-spelling/check-spelling@cfb6f7e75bbfc89c71eaa30366d0c166f1bd9c8c # v0.0.26
         with:
           checkout: true
           task: ${{ needs.spelling.outputs.followup }}