diff --git a/shell/update.sh b/shell/update.sh
index a8f16a2f..dbdbcb7a 100755
--- a/shell/update.sh
+++ b/shell/update.sh
@@ -301,15 +301,13 @@ update_qinglong() {
 }
 
 reload_pm2() {
-    local app_pid=$(ps -ef | grep "app.js" | grep -v grep)
-    if [ "$app_pid" != "" ]; then
+    if [[ $(pm2 info panel 2>/dev/null) ]]; then
         pm2 reload panel >/dev/null 2>&1
     else
         pm2 start $dir_root/build/app.js -n panel >/dev/null 2>&1
     fi
 
-    local schedule_pid=$(ps -ef | grep "schedule.js" | grep -v grep)
-    if [ "$schedule_pid" != "" ]; then
+    if [[ $(pm2 info schedule 2>/dev/null) ]]; then
         pm2 reload schedule >/dev/null 2>&1
     else
         pm2 start $dir_root/build/schedule.js -n schedule >/dev/null 2>&1