diff --git a/vendor/golang.org/x/sys/unix/syscall_darwin_amd64.go b/vendor/golang.org/x/sys/unix/syscall_darwin_amd64.go
index 5862404..b37310c 100644
--- a/vendor/golang.org/x/sys/unix/syscall_darwin_amd64.go
+++ b/vendor/golang.org/x/sys/unix/syscall_darwin_amd64.go
@@ -2,15 +2,12 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build amd64 && darwin
 // +build amd64,darwin
 
 package unix
 
-import (
-	"syscall"
-)
-
-//sys   ptrace(request int, pid int, addr uintptr, data uintptr) (err error)
+import "syscall"
 
 func setTimespec(sec, nsec int64) Timespec {
 	return Timespec{Sec: sec, Nsec: nsec}
@@ -49,5 +46,6 @@
 //sys	Fstatfs(fd int, stat *Statfs_t) (err error) = SYS_FSTATFS64
 //sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT64
 //sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
+//sys	ptrace1(request int, pid int, addr uintptr, data uintptr) (err error) = SYS_ptrace
 //sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
 //sys	Statfs(path string, stat *Statfs_t) (err error) = SYS_STATFS64