diff --git a/README.md b/README.md
index e32c26e8f..863dd0d82 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,9 @@ jobs:
   repo-sync:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v2
+      with:
+        persist-credentials: false
     - name: repo-sync
       uses: repo-sync/github-sync@v2
       with:
@@ -64,4 +66,4 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <!-- prettier-ignore-end -->
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
-This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
\ No newline at end of file
+This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
diff --git a/github-sync.sh b/github-sync.sh
index 8144c2821..57b448c3f 100755
--- a/github-sync.sh
+++ b/github-sync.sh
@@ -23,7 +23,7 @@ fi
 echo "UPSTREAM_REPO=$UPSTREAM_REPO"
 echo "BRANCHES=$BRANCH_MAPPING"
 
-# GitHub actions v2 no longer auto set GITHUB_TOKEN
+git config --unset-all http."https://github.com/".extraheader
 git remote set-url origin "https://$GITHUB_ACTOR:$GITHUB_TOKEN@github.com/$GITHUB_REPOSITORY"
 git remote add tmp_upstream "$UPSTREAM_REPO"
 git fetch tmp_upstream