1 files changed, 3 insertions, 0 deletions

diff --git a/.travis.yml b/.travis.yml
index 389dc95..6396f6f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,9 @@ python:
   - "3.4"
   - "3.5"
   - "3.6"
+  - "3.6-dev"
+  - "3.7-dev"
+  - "nightly"
   - "pypy"
   - "pypy3"