diff --git a/go.mod b/go.mod
index 76ff1d33b..95e77dd3a 100644
--- a/go.mod
+++ b/go.mod
@@ -34,5 +34,5 @@ require (
 	github.com/stretchr/testify v1.4.0
 	github.com/urfave/cli v1.22.1
 	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
-	golang.org/x/sys v0.0.0-20191007092633-5f54ce542709 // indirect
+	golang.org/x/sys v0.0.0-20191007154456-ef33b2fb2c41 // indirect
 )
diff --git a/go.sum b/go.sum
index b3808bac0..acc238003 100644
--- a/go.sum
+++ b/go.sum
@@ -237,6 +237,8 @@ golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9 h1:L2auWcuQIvxz9xSEqzESnV/QN
 golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191007092633-5f54ce542709 h1:wGFnQAzp3osDbpU/aeSzlZ7/hHjXuMgcAX3p8UKPEcA=
 golang.org/x/sys v0.0.0-20191007092633-5f54ce542709/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20191007154456-ef33b2fb2c41 h1:OC2BiV9nQHWgVMNbxZ5/eZKWnnd3Z4H9W5zdNvC4EBc=
+golang.org/x/sys v0.0.0-20191007154456-ef33b2fb2c41/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2 h1:z99zHgr7hKfrUcX/KsoJk5FJfjTceCKIp96+biqP4To=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
diff --git a/vendor/golang.org/x/sys/windows/asm_windows_386.s b/vendor/golang.org/x/sys/windows/asm_windows_386.s
deleted file mode 100644
index 21d994d31..000000000
--- a/vendor/golang.org/x/sys/windows/asm_windows_386.s
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//
-// System calls for 386, Windows are implemented in runtime/syscall_windows.goc
-//
-
-TEXT ·getprocaddress(SB), 7, $0-16
-	JMP	syscall·getprocaddress(SB)
-
-TEXT ·loadlibrary(SB), 7, $0-12
-	JMP	syscall·loadlibrary(SB)
diff --git a/vendor/golang.org/x/sys/windows/asm_windows_amd64.s b/vendor/golang.org/x/sys/windows/asm_windows_amd64.s
deleted file mode 100644
index 5bfdf7974..000000000
--- a/vendor/golang.org/x/sys/windows/asm_windows_amd64.s
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//
-// System calls for amd64, Windows are implemented in runtime/syscall_windows.goc
-//
-
-TEXT ·getprocaddress(SB), 7, $0-32
-	JMP	syscall·getprocaddress(SB)
-
-TEXT ·loadlibrary(SB), 7, $0-24
-	JMP	syscall·loadlibrary(SB)
diff --git a/vendor/golang.org/x/sys/windows/asm_windows_arm.s b/vendor/golang.org/x/sys/windows/asm_windows_arm.s
deleted file mode 100644
index 55d8b91a2..000000000
--- a/vendor/golang.org/x/sys/windows/asm_windows_arm.s
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-#include "textflag.h"
-
-TEXT ·getprocaddress(SB),NOSPLIT,$0
-	B	syscall·getprocaddress(SB)
-
-TEXT ·loadlibrary(SB),NOSPLIT,$0
-	B	syscall·loadlibrary(SB)
diff --git a/vendor/golang.org/x/sys/windows/dll_windows.go b/vendor/golang.org/x/sys/windows/dll_windows.go
index ba67658db..d77711341 100644
--- a/vendor/golang.org/x/sys/windows/dll_windows.go
+++ b/vendor/golang.org/x/sys/windows/dll_windows.go
@@ -11,6 +11,18 @@ import (
 	"unsafe"
 )
 
+// We need to use LoadLibrary and GetProcAddress from the Go runtime, because
+// the these symbols are loaded by the system linker and are required to
+// dynamically load additional symbols. Note that in the Go runtime, these
+// return syscall.Handle and syscall.Errno, but these are the same, in fact,
+// as windows.Handle and windows.Errno, and we intend to keep these the same.
+
+//go:linkname syscall_loadlibrary syscall.loadlibrary
+func syscall_loadlibrary(filename *uint16) (handle Handle, err Errno)
+
+//go:linkname syscall_getprocaddress syscall.getprocaddress
+func syscall_getprocaddress(handle Handle, procname *uint8) (proc uintptr, err Errno)
+
 // DLLError describes reasons for DLL load failures.
 type DLLError struct {
 	Err     error
@@ -20,10 +32,6 @@ type DLLError struct {
 
 func (e *DLLError) Error() string { return e.Msg }
 
-// Implemented in runtime/syscall_windows.goc; we provide jumps to them in our assembly file.
-func loadlibrary(filename *uint16) (handle uintptr, err syscall.Errno)
-func getprocaddress(handle uintptr, procname *uint8) (proc uintptr, err syscall.Errno)
-
 // A DLL implements access to a single DLL.
 type DLL struct {
 	Name   string
@@ -40,7 +48,7 @@ func LoadDLL(name string) (dll *DLL, err error) {
 	if err != nil {
 		return nil, err
 	}
-	h, e := loadlibrary(namep)
+	h, e := syscall_loadlibrary(namep)
 	if e != 0 {
 		return nil, &DLLError{
 			Err:     e,
@@ -50,7 +58,7 @@ func LoadDLL(name string) (dll *DLL, err error) {
 	}
 	d := &DLL{
 		Name:   name,
-		Handle: Handle(h),
+		Handle: h,
 	}
 	return d, nil
 }
@@ -71,7 +79,7 @@ func (d *DLL) FindProc(name string) (proc *Proc, err error) {
 	if err != nil {
 		return nil, err
 	}
-	a, e := getprocaddress(uintptr(d.Handle), namep)
+	a, e := syscall_getprocaddress(d.Handle, namep)
 	if e != 0 {
 		return nil, &DLLError{
 			Err:     e,
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 48d1578a1..1393f2aa6 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -120,7 +120,7 @@ golang.org/x/net/context/ctxhttp
 # golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
 golang.org/x/oauth2
 golang.org/x/oauth2/internal
-# golang.org/x/sys v0.0.0-20191007092633-5f54ce542709
+# golang.org/x/sys v0.0.0-20191007154456-ef33b2fb2c41
 golang.org/x/sys/cpu
 golang.org/x/sys/unix
 golang.org/x/sys/windows