diff --git a/.travis.yml b/.travis.yml
index 7cceb6e2..8c3add3d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,8 @@ python:
   - '2.7'
   - '3.4'
   - '3.5'
+  - 'pypy'
+  - 'pypy3'
 
 install:
 - pip install -r requirements.txt