diff --git a/cmd/run.go b/cmd/run.go
index bc3256f6f0..452db84fb2 100644
--- a/cmd/run.go
+++ b/cmd/run.go
@@ -4,9 +4,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/mzz2017/softwind/netproxy"
-	"github.com/mzz2017/softwind/pkg/fastrand"
-	"github.com/mzz2017/softwind/protocol/direct"
 	"net"
 	"net/http"
 	"os"
@@ -18,6 +15,10 @@ import (
 	"syscall"
 	"time"
 
+	"github.com/mzz2017/softwind/netproxy"
+	"github.com/mzz2017/softwind/pkg/fastrand"
+	"github.com/mzz2017/softwind/protocol/direct"
+
 	"github.com/daeuniverse/dae/cmd/internal"
 	"github.com/daeuniverse/dae/common"
 	"github.com/daeuniverse/dae/common/subscription"
diff --git a/control/control_plane.go b/control/control_plane.go
index b23c45f659..b18568414a 100644
--- a/control/control_plane.go
+++ b/control/control_plane.go
@@ -35,6 +35,7 @@ import (
 	"github.com/mohae/deepcopy"
 	"github.com/mzz2017/softwind/pool"
 	"github.com/mzz2017/softwind/protocol/direct"
+	"github.com/mzz2017/softwind/transport/grpc"
 	"github.com/sirupsen/logrus"
 	"golang.org/x/net/dns/dnsmessage"
 	"golang.org/x/sys/unix"
@@ -262,6 +263,8 @@ func NewControlPlane(
 	}
 
 	// Filter out groups.
+	// FIXME: Ugly code here: reset grpc clients manually.
+	grpc.CleanGlobalClientConnectionCache()
 	dialerSet := outbound.NewDialerSetFromLinks(option, tagToNodeList)
 	deferFuncs = append(deferFuncs, dialerSet.Close)
 	for _, group := range groups {
diff --git a/go.mod b/go.mod
index a5435d892d..9b23eae14c 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/gorilla/websocket v1.5.0
 	github.com/json-iterator/go v1.1.12
 	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826
-	github.com/mzz2017/softwind v0.0.0-20230617041556-c341d431c575
+	github.com/mzz2017/softwind v0.0.0-20230618055635-5c79a9138694
 	github.com/okzk/sdnotify v0.0.0-20180710141335-d9becc38acbd
 	github.com/safchain/ethtool v0.0.0-20230116090318-67cc41908669
 	github.com/sirupsen/logrus v1.9.0
diff --git a/go.sum b/go.sum
index b93281d9cc..3444b7748b 100644
--- a/go.sum
+++ b/go.sum
@@ -78,8 +78,8 @@ github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826 h1:RWengNIwukTxcDr9
 github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826/go.mod h1:TaXosZuwdSHYgviHp1DAtfrULt5eUgsSMsZf+YrPgl8=
 github.com/mzz2017/disk-bloom v1.0.1 h1:rEF9MiXd9qMW3ibRpqcerLXULoTgRlM21yqqJl1B90M=
 github.com/mzz2017/disk-bloom v1.0.1/go.mod h1:JLHETtUu44Z6iBmsqzkOtFlRvXSlKnxjwiBRDapizDI=
-github.com/mzz2017/softwind v0.0.0-20230617041556-c341d431c575 h1:SdmqtK60s2yi9qghZ0CyECRkXDOGhp2wvhFxISi1spU=
-github.com/mzz2017/softwind v0.0.0-20230617041556-c341d431c575/go.mod h1:1hn+ZsP9fLm17yEx0jyqxHkIKm5u2gBXVGIrnKsE1fY=
+github.com/mzz2017/softwind v0.0.0-20230618055635-5c79a9138694 h1:qLBM6+Xt8JxWM4gkMuBOOn9Xy1aAcQorH4vEB8ibHls=
+github.com/mzz2017/softwind v0.0.0-20230618055635-5c79a9138694/go.mod h1:1hn+ZsP9fLm17yEx0jyqxHkIKm5u2gBXVGIrnKsE1fY=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
 github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
 github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=