diff --git a/.travis.yml b/.travis.yml
index 07866f0..54f4c6f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,9 @@
 language: python
 python:
   - "2.7"
+  - "3.6"
   - "3.5"
   - "3.4"
-  - "3.3"
 # command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
 install:
     - "pip install -e ."