diff --git a/go.mod b/go.mod
index fe54abb..c87b739 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/ooni/oohttp v0.5.2
 	github.com/orcaman/concurrent-map/v2 v2.0.1
 	github.com/panjf2000/ants/v2 v2.7.1
-	github.com/refraction-networking/utls v1.3.0
+	github.com/refraction-networking/utls v1.3.1
 	github.com/rivo/tview v0.0.0-20230208211350-7dfff1ce7854
 	github.com/yunginnanet/Rate5 v1.2.1
 	golang.org/x/net v0.8.0
diff --git a/go.sum b/go.sum
index 5654c7b..6dc2b8b 100644
--- a/go.sum
+++ b/go.sum
@@ -33,8 +33,8 @@ github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTK
 github.com/phayes/freeport v0.0.0-20220201140144-74d24b5ae9f5 h1:Ii+DKncOVM8Cu1Hc+ETb5K+23HdAMvESYE3ZJ5b5cMI=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/refraction-networking/utls v1.3.0 h1:ce8s01ETzaohxYIrij8//hlYxuFK9gb9teeC/iOQaT0=
-github.com/refraction-networking/utls v1.3.0/go.mod h1:kHXvVB66a4BzVRYC4Em7e1HAfp7uwOCCw0+2CZ3sMY8=
+github.com/refraction-networking/utls v1.3.1 h1:3zVomUqx7nCmyGuU/6kYA/jp5NcqX8KQSGko8pY5Ch4=
+github.com/refraction-networking/utls v1.3.1/go.mod h1:kHXvVB66a4BzVRYC4Em7e1HAfp7uwOCCw0+2CZ3sMY8=
 github.com/rivo/tview v0.0.0-20230208211350-7dfff1ce7854 h1:/IIOjnKLbuO5YtZUZaJVw9fc062ChPlaGWEBmJ6jyGY=
 github.com/rivo/tview v0.0.0-20230208211350-7dfff1ce7854/go.mod h1:lBUy/T5kyMudFzWUH/C2moN+NlU5qF505vzOyINXuUQ=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=