diff --git a/go.mod b/go.mod
index ad67c765ecad..b8232c1b3389 100644
--- a/go.mod
+++ b/go.mod
@@ -80,7 +80,7 @@ require (
 	github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f
 	github.com/docker/docker v20.10.10+incompatible
 	github.com/erikdubbelboer/gspt v0.0.0-20190125194910-e68493906b83
-	github.com/flannel-io/flannel v0.18.1
+	github.com/flannel-io/flannel v0.19.1
 	github.com/go-bindata/go-bindata v3.1.2+incompatible
 	github.com/go-sql-driver/mysql v1.6.0
 	github.com/golangplus/testing v1.0.0 // indirect
diff --git a/go.sum b/go.sum
index a4042897bab2..17d1593a14f0 100644
--- a/go.sum
+++ b/go.sum
@@ -356,8 +356,8 @@ github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5Kwzbycv
 github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
 github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
 github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
-github.com/flannel-io/flannel v0.18.1 h1:kokF/aMIcXNrl7tHDg3Q+VcQDdQ5cq65GLcNsoeHmcs=
-github.com/flannel-io/flannel v0.18.1/go.mod h1:iAS5jRrwG+dUuGBhBIPZ8K6GvUZ3bodZfRjESOH9co0=
+github.com/flannel-io/flannel v0.19.1 h1:VTtAWLP1puTKjEAKzgVShNbq6e4ycjKQ7F7EH4QyVuU=
+github.com/flannel-io/flannel v0.19.1/go.mod h1:iAS5jRrwG+dUuGBhBIPZ8K6GvUZ3bodZfRjESOH9co0=
 github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
 github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/form3tech-oss/jwt-go v3.2.2+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k=
diff --git a/pkg/agent/flannel/flannel.go b/pkg/agent/flannel/flannel.go
index 59ccefcd03f7..9fd2ad9b9ac8 100644
--- a/pkg/agent/flannel/flannel.go
+++ b/pkg/agent/flannel/flannel.go
@@ -70,8 +70,8 @@ func flannel(ctx context.Context, flannelIface *net.Interface, flannelConf, kube
 	}
 
 	if netMode == (ipv4+ipv6) || netMode == ipv4 {
-		go network.SetupAndEnsureIPTables(network.MasqRules(config.Network, bn.Lease()), 60)
-		go network.SetupAndEnsureIPTables(network.ForwardRules(config.Network.String()), 50)
+		go network.SetupAndEnsureIP4Tables(network.MasqRules(config.Network, bn.Lease()), 60)
+		go network.SetupAndEnsureIP4Tables(network.ForwardRules(config.Network.String()), 50)
 	}
 
 	if flannelIPv6Masq && config.IPv6Network.String() != emptyIPv6Network {