diff --git a/.travis.yml b/.travis.yml
index 2e2f7c9a..25da6569 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,5 +4,7 @@ python:
   - "3.2"
   - "3.3"
   - "3.4"
+  - "3.5"
+  - "nightly"
   - "pypy3"
 script: make test