diff --git a/.travis.yml b/.travis.yml
index f1ee663..4832d8d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ python:
   - 3.4
   - 3.5
   - pypy
-  - pypy3
+  - pypy3.3-5.2-alpha1
 install:
   - pip install --upgrade pytest
   - pip install --upgrade pytest-cov