diff --git a/.github/workflows/test-arealite.yml b/.github/workflows/test-arealite.yml
index 41ae60b..486e8e0 100644
--- a/.github/workflows/test-arealite.yml
+++ b/.github/workflows/test-arealite.yml
@@ -1,7 +1,8 @@
 name: Test AReaLite
 
 on:
-  push:
+  pull_request:
+    branches: [ lite ]
     paths:
       - .github/workflows/test-arealite.yml
       - arealite/**
@@ -20,11 +21,12 @@ jobs:
         env:
           GIT_REPO_URL: https://github.bibk.top/${{ github.repository }}
           GIT_COMMIT_SHA: ${{ github.sha }}
+          CI_NODE_SUDO_PW: ${{ secrets.CI_NODE_SUDO_PW }}
         with:
           host: ${{ secrets.CI_NODE_ADDR }}
           username: ${{ secrets.CI_NODE_USER }}
           key: ${{ secrets.REMOTE_SSH_KEY }}
-          envs: GIT_REPO_URL,GIT_COMMIT_SHA
+          envs: GIT_REPO_URL,GIT_COMMIT_SHA,CI_NODE_SUDO_PW
           script_path: ci/clone_repo.sh
 
       - uses: appleboy/ssh-action@v1
diff --git a/arealite/tests/test_sglang_engine.py b/arealite/tests/test_sglang_engine.py
index a4c2043..42f648c 100644
--- a/arealite/tests/test_sglang_engine.py
+++ b/arealite/tests/test_sglang_engine.py
@@ -26,6 +26,8 @@ if not os.path.exists(MODEL_PATH):
 PORT = 13887
 DIST_PORT = 15887
 HOST = network.gethostip()
+# set a large timeout since we may need to download the model from hub
+RUN_SERVER_TIMEOUT = 180
 
 
 def check_server_health(base_url):
@@ -65,11 +67,11 @@ def sglang_server():
     )
     base_url = f"http://{HOST}:{PORT}"
     tik = time.time()
-    while time.time() - tik < 90:
+    while time.time() - tik < RUN_SERVER_TIMEOUT:
         if check_server_health(base_url):
             break
         time.sleep(1)
-    if time.time() - tik > 90:
+    if time.time() - tik > RUN_SERVER_TIMEOUT:
         raise RuntimeError("server launch failed")
     yield
     process.terminate()
diff --git a/ci/clone_repo.sh b/ci/clone_repo.sh
index c444882..ec75a61 100644
--- a/ci/clone_repo.sh
+++ b/ci/clone_repo.sh
@@ -9,7 +9,7 @@ echo "GIT_REPO_URL: $GIT_REPO_URL"
 echo "GIT_COMMIT_SHA: $GIT_COMMIT_SHA"
 
 RUN_ID="areal-$GIT_COMMIT_SHA"
-rm -rf "/tmp/$RUN_ID"
+echo ${CI_NODE_SUDO_PW} | sudo -S rm -rf "/tmp/$RUN_ID"
 mkdir -p "/tmp/$RUN_ID"
 cd "/tmp/$RUN_ID"