diff --git a/doc.go b/doc.go
index d172360..e224310 100644
--- a/doc.go
+++ b/doc.go
@@ -1,10 +1,5 @@
-// Copyright 2019 Andy Pan. All rights reserved.
-// Use of this source code is governed by an MIT-style
-// license that can be found in the LICENSE file.
-
 /*
 Library ants implements a goroutine pool with fixed capacity, managing and recycling a massive number of goroutines,
 allowing developers to limit the number of goroutines in your concurrent programs.
 */
-
 package ants