diff --git a/.travis.yml b/.travis.yml
index 8d61700..e846b5e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,7 @@
 language: go
+arch:
+   - amd64
+   - ppc64le
 go:
-  - 1.1
+  - 1.5
   - tip