diff --git a/.github/workflows/auto-merge.yml b/.github/workflows/auto-merge.yml
index 195dbac763e3..c9d72511e63d 100644
--- a/.github/workflows/auto-merge.yml
+++ b/.github/workflows/auto-merge.yml
@@ -36,6 +36,6 @@ jobs:
           REPO_NAME: spark-rapids
           HEAD: branch-0.2
           BASE: branch-0.3
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # use to create and merge PR
-          NVAUTO_TOKEN: ${{ secrets.NVAUTO_TOKEN }} # PR has to be approved by a different token
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # use to approve and merge PR
+          NVAUTO_TOKEN: ${{ secrets.NVAUTO_TOKEN }} # use to trigger checks.
 
diff --git a/.github/workflows/auto-merge/automerge b/.github/workflows/auto-merge/automerge
index bed17cc6dd37..0ae439feb3a7 100755
--- a/.github/workflows/auto-merge/automerge
+++ b/.github/workflows/auto-merge/automerge
@@ -31,11 +31,7 @@ import requests
 API_URL = 'https://api.github.com'
 
 
-def create(github_token: str, owner: str, repo_name: str, head: str, base: str):
-    auth_header = {
-        'Authorization': 'token ' + github_token
-    }
-
+def create(nvauto_token: str, owner: str, repo_name: str, head: str, base: str):
     url = f'{API_URL}/repos/{owner}/{repo_name}/pulls'
     params = {
         'title': f'[auto-merge] {head} to {base} [skip ci] [bot]',
@@ -45,7 +41,7 @@ def create(github_token: str, owner: str, repo_name: str, head: str, base: str):
                 'this PR is unable to be merged due to conflicts, it will remain open until manually fix.',
         'maintainer_can_modify': True
     }
-    r = requests.post(url, headers=auth_header, json=params)
+    r = requests.post(url, headers={'Authorization': 'token ' + nvauto_token}, json=params)
     if r.status_code == 201:
         print('SUCCESS - create PR')
         pull = r.json()
@@ -63,7 +59,10 @@ def create(github_token: str, owner: str, repo_name: str, head: str, base: str):
     sys.exit(1)
 
 
-def auto_merge(github_token: str, nvauto_token: str, owner: str, repo_name: str, number: str, commit_id: str):
+def auto_merge(github_token: str, owner: str, repo_name: str, number: str, commit_id: str):
+    auth_header = {
+        'Authorization': 'token ' + github_token
+    }
     try:
         # auto-approve PR
         approve_url = f'{API_URL}/repos/{owner}/{repo_name}/pulls/{number}/reviews'
@@ -72,9 +71,9 @@ def auto_merge(github_token: str, nvauto_token: str, owner: str, repo_name: str,
             'event': 'APPROVE',
             'body': 'auto-approved',
         }
-        r = requests.post(approve_url, headers={'Authorization': 'token ' + nvauto_token}, json=approve_params)
+        r = requests.post(approve_url, headers=auth_header, json=approve_params)
         if r.status_code == 200:
-            comment(github_token=github_token, owner=owner, repo_name=repo_name, number=number,
+            comment(token=github_token, owner=owner, repo_name=repo_name, number=number,
                     content='**SUCCESS** - auto-approve')
             print('SUCCESS - auto-approve')
         else:
@@ -87,9 +86,9 @@ def auto_merge(github_token: str, nvauto_token: str, owner: str, repo_name: str,
             'sha': commit_id,
             'merge_method': 'merge',
         }
-        r = requests.put(merge_url, headers={'Authorization': 'token ' + github_token}, json=merge_params)
+        r = requests.put(merge_url, headers=auth_header, json=merge_params)
         if r.status_code == 200:
-            comment(github_token=github_token, owner=owner, repo_name=repo_name, number=number,
+            comment(token=github_token, owner=owner, repo_name=repo_name, number=number,
                     content='**SUCCESS** - auto-merge')
             print('SUCCESS - auto-merge')
             sys.exit(0)
@@ -97,7 +96,7 @@ def auto_merge(github_token: str, nvauto_token: str, owner: str, repo_name: str,
             print('FAILURE - auto-merge')
             raise Exception(r.json())
     except Exception as e:
-        comment(github_token=github_token, owner=owner, repo_name=repo_name, number=number,
+        comment(token=github_token, owner=owner, repo_name=repo_name, number=number,
                 content=f"""**FAILURE** - Unable to auto-merge. Manual operation is required.
 ```
 {e}
@@ -107,15 +106,12 @@ def auto_merge(github_token: str, nvauto_token: str, owner: str, repo_name: str,
         sys.exit(1)
 
 
-def comment(github_token: str, owner: str, repo_name: str, number: str, content: str):
-    auth_header = {
-        'Authorization': 'token ' + github_token
-    }
+def comment(token: str, owner: str, repo_name: str, number: str, content: str):
     url = f'{API_URL}/repos/{owner}/{repo_name}/issues/{number}/comments'
     params = {
         'body': content
     }
-    r = requests.post(url, headers=auth_header, json=params)
+    r = requests.post(url, headers={'Authorization': 'token ' + token}, json=params)
     if r.status_code == 201:
         print('SUCCESS - create comment')
     else:
@@ -126,16 +122,17 @@ def comment(github_token: str, owner: str, repo_name: str, number: str, content:
 
 def main(github_token: str, nvauto_token: str, owner: str, repo_name: str, head: str, base: str):
     try:
-        number, sha, term = create(github_token=github_token, owner=owner, repo_name=repo_name, head=head, base=base)
+        # NOTE: github actions can not be trigger by default github-actions bot
+        # So use nvauto_token to trigger checks
+        number, sha, term = create(nvauto_token=nvauto_token, owner=owner, repo_name=repo_name, head=head, base=base)
         if term:
             sys.exit(0)
 
         # skip pre-merge blossom CI w/ [skip ci] in PR title
-        comment(github_token=nvauto_token, owner=owner, repo_name=repo_name, number=number, content='build')
+        comment(token=nvauto_token, owner=owner, repo_name=repo_name, number=number, content='build')
 
         time.sleep(600)  # sleep 10 minutes, then try auto-merge
-        auto_merge(github_token=github_token, nvauto_token=nvauto_token,
-                   owner=owner, repo_name=repo_name, number=number, commit_id=sha)
+        auto_merge(github_token=github_token, owner=owner, repo_name=repo_name, number=number, commit_id=sha)
     except Exception as e:
         print("Unexpected error: ", e)
         exit(-1)