diff --git a/go.mod b/go.mod
index 7cba465..f009e95 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/fsnotify/fsnotify v1.5.4
 	github.com/sagernet/go-tun2socks v1.16.12-0.20220818015926-16cb67876a61
 	github.com/sagernet/netlink v0.0.0-20220816152750-7a75378bd31a
-	github.com/sagernet/sing v0.0.0-20220817130738-ce854cda8522
+	github.com/sagernet/sing v0.0.0-20220819003212-2424b1e2fac1
 	golang.org/x/net v0.0.0-20220812174116-3211cb980234
 	golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab
 	gvisor.dev/gvisor v0.0.0-20220801010827-addd1f7b3e97
diff --git a/go.sum b/go.sum
index d9e9e2c..e9160d8 100644
--- a/go.sum
+++ b/go.sum
@@ -6,8 +6,9 @@ github.com/sagernet/go-tun2socks v1.16.12-0.20220818015926-16cb67876a61 h1:5+m7c
 github.com/sagernet/go-tun2socks v1.16.12-0.20220818015926-16cb67876a61/go.mod h1:QUQ4RRHD6hGGHdFMEtR8T2P6GS6R3D/CXKdaYHKKXms=
 github.com/sagernet/netlink v0.0.0-20220816152750-7a75378bd31a h1:iNtsfGMenajBUGZ/1yAzl1v3p+t/7IJ/ilQXq9haRZ8=
 github.com/sagernet/netlink v0.0.0-20220816152750-7a75378bd31a/go.mod h1:xLnfdiJbSp8rNqYEdIW/6eDO4mVoogml14Bh2hSiFpM=
-github.com/sagernet/sing v0.0.0-20220817130738-ce854cda8522 h1:CtHJzJbaZ7icl+yL15NHiXf9Bbm84Wep0P61lQiAFsY=
 github.com/sagernet/sing v0.0.0-20220817130738-ce854cda8522/go.mod h1:QVsS5L/ZA2Q5UhQwLrn0Trw+msNd/NPGEhBKR/ioWiY=
+github.com/sagernet/sing v0.0.0-20220819003212-2424b1e2fac1 h1:+YC0/ygsJc4Z8qhd7ypsbWgMSm+UWN+QK+PW7I19K4Q=
+github.com/sagernet/sing v0.0.0-20220819003212-2424b1e2fac1/go.mod h1:QVsS5L/ZA2Q5UhQwLrn0Trw+msNd/NPGEhBKR/ioWiY=
 github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 h1:gga7acRE695APm9hlsSMoOoE65U4/TcqNj90mc69Rlg=
 github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
 golang.org/x/net v0.0.0-20220812174116-3211cb980234 h1:RDqmgfe7SvlMWoqC3xwQ2blLO3fcWcxMa3eBLRdRW7E=
diff --git a/tun_darwin.go b/tun_darwin.go
index 5379d83..cb2cfdb 100644
--- a/tun_darwin.go
+++ b/tun_darwin.go
@@ -50,7 +50,11 @@ func Open(options Options) (Tun, error) {
 		inet4Address: string(options.Inet4Address.Addr().AsSlice()),
 		inet6Address: string(options.Inet6Address.Addr().AsSlice()),
 	}
-	nativeTun.tunWriter, _ = bufio.CreateVectorisedWriter(nativeTun.tunFile)
+	var ok bool
+	nativeTun.tunWriter, ok = bufio.CreateVectorisedWriter(nativeTun.tunFile)
+	if !ok {
+		panic("create vectorised writer")
+	}
 	runtime.SetFinalizer(nativeTun.tunFile, nil)
 	return nativeTun, nil
 }