diff --git a/go.mod b/go.mod
index 6d1675b..37ca986 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.18
 
 require (
 	fortio.org/cli v1.5.1
-	fortio.org/fortio v1.63.2
+	fortio.org/fortio v1.63.3
 	fortio.org/log v1.12.0
 	fortio.org/testscript v0.3.1
 	github.com/miekg/dns v1.1.58
@@ -14,7 +14,7 @@ require (
 	fortio.org/struct2env v0.4.0 // indirect
 	fortio.org/version v1.0.3 // indirect
 	golang.org/x/mod v0.14.0 // indirect
-	golang.org/x/net v0.20.0 // indirect
-	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/net v0.21.0 // indirect
+	golang.org/x/sys v0.17.0 // indirect
 	golang.org/x/tools v0.17.0 // indirect
 )
diff --git a/go.sum b/go.sum
index c52c394..140fdd3 100644
--- a/go.sum
+++ b/go.sum
@@ -1,8 +1,8 @@
 fortio.org/assert v1.2.0 h1:XscfvR8yp4xW7OMCvNbCsieRFDxlwdEcb69+JZRp6LA=
 fortio.org/cli v1.5.1 h1:lqPvkxRVSajsVwLfblaN62BPAICPp05Oab+yjRvI3DU=
 fortio.org/cli v1.5.1/go.mod h1:Tp7AypudP1mJomTUN/J/vlOTlZDWTMsok09MMyA99ow=
-fortio.org/fortio v1.63.2 h1:vswUkwVtanocS9nJFoTdejvuv1ZNbYX+5ZLWYFlkDJc=
-fortio.org/fortio v1.63.2/go.mod h1:MMYLve1tjqI/AeCAzyxcRjkltcUl6Rj0JUzEezKcZFY=
+fortio.org/fortio v1.63.3 h1:t4FoQ70znmYEEST3eyMLDqGaoNJPUDZNvoPRRH0WsaQ=
+fortio.org/fortio v1.63.3/go.mod h1:HFYGCHKrxS+Yuuw/7gcO7hhsEvrKt6t7sh1Xkn/kggw=
 fortio.org/log v1.12.0 h1:5Yg4pL9Pp0jcWeJYixm2xikMCldVaSDMgDFDmQJZfho=
 fortio.org/log v1.12.0/go.mod h1:1tMBG/Elr6YqjmJCWiejJp2FPvXg7/9UAN0Rfpkyt1o=
 fortio.org/struct2env v0.4.0 h1:k5alSOTf3YHiB3MuacjDHQ3YhVWvNZ95ZP/a6MqvyLo=
@@ -15,10 +15,10 @@ github.com/miekg/dns v1.1.58 h1:ca2Hdkz+cDg/7eNF6V56jjzuZ4aCAE+DbVkILdQWG/4=
 github.com/miekg/dns v1.1.58/go.mod h1:Ypv+3b/KadlvW9vJfXOTf300O4UqaHFzFCuHz+rPkBY=
 golang.org/x/mod v0.14.0 h1:dGoOF9QVLYng8IHTm7BAyWqCqSheQ5pYWGhzW00YJr0=
 golang.org/x/mod v0.14.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
-golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
-golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
+golang.org/x/net v0.21.0 h1:AQyQV4dYCvJ7vGmJyKki9+PBdyvhkSd8EIx/qb0AYv4=
+golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
 golang.org/x/sync v0.6.0 h1:5BMeUDZ7vkXGfEr1x9B4bRcTH4lpkTkpdh0T/J+qjbQ=
-golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
-golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.17.0 h1:25cE3gD+tdBA7lp7QfhuV+rJiE9YXTcS3VG1SqssI/Y=
+golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/tools v0.17.0 h1:FvmRgNOcs3kOa+T20R1uhfP9F6HgG2mfxDv1vrx1Htc=
 golang.org/x/tools v0.17.0/go.mod h1:xsh6VxdV005rRVaS6SSAf9oiAqljS7UZUacMZ8Bnsps=