diff --git a/.travis.yml b/.travis.yml
index bf60d76d5..cc8658226 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ python:
   - "3.2"
   - "3.3"
   - "3.4"
+  - "nightly"
   - "pypy"
   - "pypy3"
 # command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors