diff --git a/lib/routes/index.js b/lib/routes/index.js
index 1f487806f..664ba7f5d 100644
--- a/lib/routes/index.js
+++ b/lib/routes/index.js
@@ -56,9 +56,7 @@ module.exports = async (ctx) => {
     }
     const { disallowRobot } = config;
 
-    const stats = await pidusage(process.pid, {
-        usePs: true,
-    });
+    const stats = await pidusage(process.pid);
 
     ctx.body = art(path.resolve(__dirname, '../views/welcome.art'), {
         showDebug,