diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index b7fb3b9..e7b4040 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -85,7 +85,7 @@ jobs:
         uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
         with:
           script: |
-            const commentText = 'Diff for ' + context.payload.pull_request.head.sha + ':';
+            const commentText = 'Diff for ' + process.env.GITHUB_SHA + ':';
 
             const fs = require('fs');
             const diff = fs.readFileSync(process.env.GITHUB_WORKSPACE + '/diff.txt').toString().trimEnd();
@@ -96,7 +96,7 @@ jobs:
             fs.writeFileSync(process.env.GITHUB_WORKSPACE + '/comment.txt', body);
 
       - name: Attach comment to PR
-        uses: marocchino/sticky-pull-request-comment@f61b6cf21ef2fcc468f4345cdfcc9bda741d2343 # v2.6.2
+        uses: marocchino/sticky-pull-request-comment@efaaab3fd41a9c3de579aba759d2552635e590fd # v2.8.0
         with:
           hide_and_recreate: true
           hide_classify: "OUTDATED"