diff --git a/README.md b/README.md
index bfb98e7a..89949d80 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![Build Status](https://travis-ci.org/lbl-srg/obc.svg?branch=master)](https://travis-ci.org/lbl-srg/obc)
 
-This is the development site for the OpenBuildingControl project. The project web site is at http://obc.lbl.gov/
+This is the development site for the OpenBuildingControl project. The project web site is at https://obc.lbl.gov/
 
 OpenBuidlingControl will develop tools and processes for the
 performance evaluation, specification and verification of building control sequences.