diff --git a/.travis.yml b/.travis.yml
index 8327ded..9e51409 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,10 @@
 sudo: false
 language: python
 python:
+  - "2.6"
   - "2.7"
+  - "3.4"
+  - "3.5"
   - "3.6"
 install: pip install tox-travis
 script: tox