diff --git a/README.md b/README.md
index c38fb86..1a4499f 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # noise [![GoDoc](https://godoc.org/github.com/flynn/noise?status.svg)](https://godoc.org/github.com/flynn/noise) [![Build Status](https://travis-ci.org/flynn/noise.svg?branch=master)](https://travis-ci.org/flynn/noise)
 
 This is a Go package that implements the [Noise Protocol
-Framework](http://noiseprotocol.org). See [the
+Framework](https://noiseprotocol.org). See [the
 documentation](https://godoc.org/github.com/flynn/noise) for usage information.
diff --git a/state.go b/state.go
index ad51aa5..3330700 100644
--- a/state.go
+++ b/state.go
@@ -3,7 +3,7 @@
 // Noise is a low-level framework for building crypto protocols. Noise protocols
 // support mutual and optional authentication, identity hiding, forward secrecy,
 // zero round-trip encryption, and other advanced features. For more details,
-// visit http://noiseprotocol.org.
+// visit https://noiseprotocol.org.
 package noise
 
 import (