diff --git a/.travis.yml b/.travis.yml
index de93f87..09ea30b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ python:
   - "3.4"
   - "3.5"
   - "pypy"
+  - "pypy3"
 install:
   - "pip install ."
 script: nosetests