From c99d36211232713b43fb4ac1a00cc253a0492286 Mon Sep 17 00:00:00 2001
From: Dan Fiedler <danfiedler@microsoft.com>
Date: Sat, 5 Sep 2026 22:00:59 -0400
Subject: [PATCH] Pin GitHub Actions to full-length commit SHAs

---
 .github/dependabot.yml            | 11 +++++++++++
 .github/workflows/linkchecker.yml |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 .github/dependabot.yml

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/linkchecker.yml b/.github/workflows/linkchecker.yml
index bfa5cdd..57a3bf9 100644
--- a/.github/workflows/linkchecker.yml
+++ b/.github/workflows/linkchecker.yml
@@ -17,7 +17,7 @@ jobs:
       issues: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@a37ce9120846195fa4ece8f58b268e6043cb2f26 # v3.7.0
 
       - name: Resolve root-relative links for checking
         run: |