diff --git a/.travis.yml b/.travis.yml
index b194f56..47c2992 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,7 @@
 language: python
 python:
     - 3.6
+    - 3.6-dev
     - 3.7-dev
     - nightly
 script: