diff --git a/.travis.yml b/.travis.yml
index c0650b2..8077035 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,11 +1,13 @@
 language: python
 
+arch:
+  - amd64
+  - ppc64le
 sudo: false
 
 python:
   - "pypy"
   - "2.7"
-  - "3.3"
   - "3.4"
   - "3.5"
 
@@ -17,6 +19,8 @@ matrix:
   exclude:
     - python: "pypy"  # pypy will always build without extension
       env: RADIX_NO_EXT=false
+    - python: "pypy"  #poweron support exclude
+      arch: ppc64le
 
 install:
   - pip install coveralls