diff --git a/.github/workflows/merge-trigger-standalone.yaml b/.github/workflows/merge-trigger-standalone.yaml
index 03e6a8ac..61b7fb85 100644
--- a/.github/workflows/merge-trigger-standalone.yaml
+++ b/.github/workflows/merge-trigger-standalone.yaml
@@ -21,6 +21,7 @@ jobs:
         uses: actions/checkout@v6
         with:
           path: ./matrixone
+          ref: ${{ github.event.pull_request.base.ref }}
       - name: Set up Go
         uses: matrixorigin/CI/actions/setup-env@main
         with:
@@ -62,7 +63,7 @@ jobs:
         with:
           repository: matrixorigin/mo-tester
           path: ./mo-tester
-          ref: main
+          ref: 3.0-dev
 
       - name: Check Java Version
         run: java -version
@@ -134,6 +135,7 @@ jobs:
         uses: actions/checkout@v6
         with:
           path: ./head
+          ref: ${{ github.event.pull_request.base.ref }}
       - name: Set up Go
         uses: matrixorigin/CI/actions/setup-env@main
         with:
@@ -159,7 +161,7 @@ jobs:
         with:
           repository: matrixorigin/mo-tester
           path: ./mo-tester
-          ref: main
+          ref: 3.0-dev
       - name: Set up JDK 8 for x64
         run: echo "$JAVA_HOME/bin" >> $GITHUB_PATH
       - name: Start BVT Test