Update .travis.yml
diff --git a/.travis.yml b/.travis.yml
index 2439ae0..b0cf782 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,6 @@
 language: go
 go:
+  - 1.1
   - 1.2
+  - 1.3
   - tip