diff --git a/.github/workflows/authors.yml b/.github/workflows/authors.yml
index e2195c9e73e96b..7374ff66a8c29d 100644
--- a/.github/workflows/authors.yml
+++ b/.github/workflows/authors.yml
@@ -15,23 +15,12 @@ jobs:
         with:
           fetch-depth: '0'  # This is required to actually get all the authors
       - run: "tools/update-authors.js"  # Run the AUTHORS tool
-      - name: "Check for duplicates"
-        run: |
-          PATTERN_FILE=`mktemp`;
-          git diff | egrep '^\+[^+]' | perl -pe 's/^\+(.+?) <.+\n/\1\n/g' > $PATTERN_FILE;
-          DUPLICATES=`grep -F -f $PATTERN_FILE AUTHORS | cut -d'<' -f1 | sort | uniq -c | sort -n | grep -v '^ *1 ' | perl -pe 's/^ *\d+ / /'`; # Last part here substitues a space at the start of each line
-          echo 'DUPLICATES<<EOF' >> $GITHUB_ENV
-          if [ ! -z "${DUPLICATES}" ]; then
-            echo "The following may be duplicates; consider adding a .mailmap entry for them:" >> $GITHUB_ENV;
-            echo "${DUPLICATES}" >> $GITHUB_ENV;
-          fi;
-          echo 'EOF' >> $GITHUB_ENV; # Each line of duplicates starts with a space, so it won't conflict with 'EOF'
       - uses: gr2m/create-or-update-pull-request-action@v1  # Create a PR or update the Action's existing PR
         env:
           GITHUB_TOKEN: ${{ secrets.GH_USER_TOKEN }}
         with:
           author: Node.js GitHub Bot <github-bot@iojs.org>
-          body: "Here are some new additions to the AUTHORS file. This is an automatically generated PR by the `authors.yml` GitHub Action, which runs `tools/update-authors.js`.\n\n{{ env.DUPLICATES }}"
+          body: "Here are some new additions to the AUTHORS file. This is an automatically generated PR by the `authors.yml` GitHub Action, which runs `tools/update-authors.js`."
           branch: "actions/authors-update"  # Custom branch *just* for this Action.
           commit-message: "meta: update AUTHORS"
           labels: meta