diff --git a/README.markdown b/README.markdown
index 7fadcb2..f1b019a 100644
--- a/README.markdown
+++ b/README.markdown
@@ -1,6 +1,6 @@
-This project is the source for http://godoc.org/
+This project is the source for https://godoc.org/
 
-[![GoDoc](https://godoc.org/github.com/golang/gddo?status.svg)](http://godoc.org/github.com/golang/gddo)
+[![GoDoc](https://godoc.org/github.com/golang/gddo?status.svg)](https://godoc.org/github.com/golang/gddo)
 [![Build
 Status](https://travis-ci.org/golang/gddo.svg?branch=master)](https://travis-ci.org/golang/gddo)