diff --git a/.github/auto_assign.yml b/.github/auto_assign.yml
index ef71467..9a273af 100644
--- a/.github/auto_assign.yml
+++ b/.github/auto_assign.yml
@@ -7,7 +7,7 @@ addAssignees: author
 
 # A list of reviewers to be added to pull requests (GitHub username)
 reviewers:
-  - japananh
+  - ncthanhngo
 
 # A number of reviewers added to the pull request
 # Set 0 to add all the reviewers (default: 0)
diff --git a/.github/workflows/action.yml b/.github/workflows/action.yml
deleted file mode 100644
index c996925..0000000
--- a/.github/workflows/action.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-name: Auto Assign
-on: [push, pull_request]
-jobs:
-  add-reviewers-assignees:
-    name: Auto Add Reviewer and Assignees
-    runs-on: ubuntu-latest
-    steps:
-      - uses: kentaro-m/auto-assign-action@v1.2.6
-        with:
-          configuration-path: '.github/auto_assign.yml' # Only needed if you use something other than .github/auto_assign.yml
diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
new file mode 100644
index 0000000..d637a14
--- /dev/null
+++ b/.github/workflows/pull-request.yml
@@ -0,0 +1,15 @@
+name: Auto Assign
+
+on:
+  issues:
+    types: [opened]
+  pull_request:
+    types: [opened]
+
+jobs:
+  add-reviews:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: kentaro-m/auto-assign-action@v1.2.6
+        with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file