diff --git a/.travis.yml b/.travis.yml
index c4bef391b..ad9655808 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,8 @@
 language: python
 
+# This have to be kept in sync with .travis.yml from Boulder
+go: 1.5
+
 services:
   - rabbitmq
   - mysql
diff --git a/docs/contributing.rst b/docs/contributing.rst
index 5aa6e3e76..af7945d60 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -67,7 +67,7 @@ The following tools are there to help you:
 Integration
 ~~~~~~~~~~~
 
-First, install `Go`_ 1.4 and start Boulder_, an ACME CA server::
+First, install `Go`_ 1.5 and start Boulder_, an ACME CA server::
 
   ./tests/boulder-start.sh